Merge pull request #2150 from zed-industries/nate/system-colors
Add system color palette
This commit is contained in:
Nate Butler
@@ -43,24 +43,3 @@ export const sizes = {
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lg: 8,
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xl: 12,
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};
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// export const colors = {
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// neutral: colorRamp(["white", "black"], { steps: 37, increment: 25 }), // (900/25) + 1
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// rose: colorRamp("#F43F5EFF"),
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// red: colorRamp("#EF4444FF"),
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// orange: colorRamp("#F97316FF"),
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// amber: colorRamp("#F59E0BFF"),
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// yellow: colorRamp("#EAB308FF"),
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// lime: colorRamp("#84CC16FF"),
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// green: colorRamp("#22C55EFF"),
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// emerald: colorRamp("#10B981FF"),
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// teal: colorRamp("#14B8A6FF"),
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// cyan: colorRamp("#06BBD4FF"),
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// sky: colorRamp("#0EA5E9FF"),
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// blue: colorRamp("#3B82F6FF"),
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// indigo: colorRamp("#6366F1FF"),
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// violet: colorRamp("#8B5CF6FF"),
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// purple: colorRamp("#A855F7FF"),
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// fuschia: colorRamp("#D946E4FF"),
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// pink: colorRamp("#EC4899FF"),
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// }
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@@ -0,0 +1,11 @@
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/** Converts a percentage scale value (0-100) to normalized scale (0-1) value. */
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export function percentageToNormalized(value: number) {
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const normalized = value / 100
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return normalized
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}
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/** Converts a normalized scale (0-1) value to a percentage scale (0-100) value. */
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export function normalizedToPercetage(value: number) {
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const percentage = value * 100
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return percentage
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}
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@@ -0,0 +1,26 @@
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import bezier from "bezier-easing"
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import { Curve } from "../ref/curves"
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/**
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* Formats our Curve data structure into a bezier easing function.
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* @param {Curve} curve - The curve to format.
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* @param {Boolean} inverted - Whether or not to invert the curve.
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* @returns {EasingFunction} The formatted easing function.
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*/
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export function curve(curve: Curve, inverted?: Boolean) {
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if (inverted) {
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return bezier(
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curve.value[3],
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curve.value[2],
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curve.value[1],
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curve.value[0]
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)
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}
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return bezier(
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curve.value[0],
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curve.value[1],
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curve.value[2],
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curve.value[3]
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)
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}
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@@ -0,0 +1,159 @@
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import bezier from "bezier-easing"
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import chroma from "chroma-js"
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import { Color, ColorFamily, ColorFamilyConfig, ColorScale } from "../types"
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import { percentageToNormalized } from "./convert"
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import { curve } from "./curve"
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// Re-export interface in a more standard format
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export type EasingFunction = bezier.EasingFunction
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/**
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* Generates a color, outputs it in multiple formats, and returns a variety of useful metadata.
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*
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* @param {EasingFunction} hueEasing - An easing function for the hue component of the color.
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* @param {EasingFunction} saturationEasing - An easing function for the saturation component of the color.
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* @param {EasingFunction} lightnessEasing - An easing function for the lightness component of the color.
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* @param {ColorFamilyConfig} family - Configuration for the color family.
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* @param {number} step - The current step.
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* @param {number} steps - The total number of steps in the color scale.
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*
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* @returns {Color} The generated color, with its calculated contrast against black and white, as well as its LCH values, RGBA array, hexadecimal representation, and a flag indicating if it is light or dark.
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*/
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function generateColor(
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hueEasing: EasingFunction,
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saturationEasing: EasingFunction,
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lightnessEasing: EasingFunction,
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family: ColorFamilyConfig,
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step: number,
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steps: number
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) {
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const { hue, saturation, lightness } = family.color
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const stepHue = hueEasing(step / steps) * (hue.end - hue.start) + hue.start
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const stepSaturation =
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saturationEasing(step / steps) * (saturation.end - saturation.start) +
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saturation.start
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const stepLightness =
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lightnessEasing(step / steps) * (lightness.end - lightness.start) +
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lightness.start
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const color = chroma.hsl(
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stepHue,
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percentageToNormalized(stepSaturation),
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percentageToNormalized(stepLightness)
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)
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const contrast = {
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black: {
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value: chroma.contrast(color, "black"),
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aaPass: chroma.contrast(color, "black") >= 4.5,
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aaaPass: chroma.contrast(color, "black") >= 7,
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},
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white: {
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value: chroma.contrast(color, "white"),
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aaPass: chroma.contrast(color, "white") >= 4.5,
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aaaPass: chroma.contrast(color, "white") >= 7,
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},
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}
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const lch = color.lch()
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const rgba = color.rgba()
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const hex = color.hex()
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// 55 is a magic number. It's the lightness value at which we consider a color to be "light".
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// It was picked by eye with some testing. We might want to use a more scientific approach in the future.
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const isLight = lch[0] > 55
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const result: Color = {
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step,
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lch,
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hex,
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rgba,
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contrast,
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isLight,
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}
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return result
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}
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/**
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* Generates a color scale based on a color family configuration.
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*
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* @param {ColorFamilyConfig} config - The configuration for the color family.
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* @param {Boolean} inverted - Specifies whether the color scale should be inverted or not.
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*
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* @returns {ColorScale} The generated color scale.
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*
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* @example
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* ```ts
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* const colorScale = generateColorScale({
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* name: "blue",
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* color: {
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* hue: {
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* start: 210,
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* end: 240,
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* curve: "easeInOut"
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* },
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* saturation: {
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* start: 100,
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* end: 100,
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* curve: "easeInOut"
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* },
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* lightness: {
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* start: 50,
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* end: 50,
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* curve: "easeInOut"
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* }
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* }
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* });
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* ```
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*/
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export function generateColorScale(
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config: ColorFamilyConfig,
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inverted: Boolean = false
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) {
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const { hue, saturation, lightness } = config.color
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// 101 steps means we get values from 0-100
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const NUM_STEPS = 101
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const hueEasing = curve(hue.curve, inverted)
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const saturationEasing = curve(saturation.curve, inverted)
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const lightnessEasing = curve(lightness.curve, inverted)
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let scale: ColorScale = {
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colors: [],
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values: [],
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}
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for (let i = 0; i < NUM_STEPS; i++) {
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const color = generateColor(
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hueEasing,
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saturationEasing,
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lightnessEasing,
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config,
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i,
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NUM_STEPS
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)
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scale.colors.push(color)
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scale.values.push(color.hex)
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}
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return scale
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}
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/** Generates a color family with a scale and an inverted scale. */
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export function generateColorFamily(config: ColorFamilyConfig) {
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const scale = generateColorScale(config, false)
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const invertedScale = generateColorScale(config, true)
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const family: ColorFamily = {
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name: config.name,
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scale,
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invertedScale,
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}
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return family
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}
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@@ -0,0 +1,445 @@
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import { generateColorFamily } from "../lib/generate"
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import { curve } from "./curves"
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// These are the source colors for the color scales in the system.
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// These should never directly be used directly in components or themes as they generate thousands of lines of code.
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// Instead, use the outputs from the reference palette which exports a smaller subset of colors.
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// Token or user-facing colors should use short, clear names and a 100-900 scale to match the font weight scale.
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// Light Gray ======================================== //
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export const lightgray = generateColorFamily({
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name: "lightgray",
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color: {
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hue: {
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start: 210,
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end: 210,
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curve: curve.linear,
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},
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saturation: {
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start: 10,
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end: 15,
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curve: curve.saturation,
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},
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lightness: {
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start: 97,
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end: 50,
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curve: curve.linear,
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},
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},
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})
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// Light Dark ======================================== //
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export const darkgray = generateColorFamily({
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name: "darkgray",
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color: {
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hue: {
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start: 210,
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end: 210,
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curve: curve.linear,
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},
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saturation: {
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start: 15,
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end: 20,
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curve: curve.saturation,
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},
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lightness: {
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start: 55,
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end: 8,
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curve: curve.linear,
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},
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},
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})
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// Red ======================================== //
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export const red = generateColorFamily({
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name: "red",
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color: {
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hue: {
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start: 0,
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end: 0,
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curve: curve.linear,
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},
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saturation: {
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start: 95,
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end: 75,
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curve: curve.saturation,
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},
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lightness: {
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start: 97,
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end: 25,
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curve: curve.lightness,
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},
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},
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})
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// Sunset ======================================== //
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export const sunset = generateColorFamily({
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name: "sunset",
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color: {
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hue: {
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start: 15,
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end: 15,
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curve: curve.linear,
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},
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saturation: {
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start: 100,
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end: 90,
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curve: curve.saturation,
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},
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lightness: {
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start: 97,
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end: 25,
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curve: curve.lightness,
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},
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},
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})
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// Orange ======================================== //
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export const orange = generateColorFamily({
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name: "orange",
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color: {
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hue: {
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start: 25,
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end: 25,
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curve: curve.linear,
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},
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saturation: {
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start: 100,
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end: 95,
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curve: curve.saturation,
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},
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lightness: {
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start: 97,
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end: 20,
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curve: curve.lightness,
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},
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},
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})
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// Amber ======================================== //
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export const amber = generateColorFamily({
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name: "amber",
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color: {
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hue: {
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start: 38,
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end: 38,
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curve: curve.linear,
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},
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saturation: {
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start: 100,
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end: 100,
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curve: curve.saturation,
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},
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lightness: {
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start: 97,
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end: 18,
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curve: curve.lightness,
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},
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},
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})
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// Yellow ======================================== //
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export const yellow = generateColorFamily({
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name: "yellow",
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color: {
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hue: {
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start: 48,
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end: 48,
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curve: curve.linear,
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},
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saturation: {
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start: 90,
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end: 100,
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curve: curve.saturation,
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},
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lightness: {
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start: 97,
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end: 15,
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curve: curve.lightness,
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},
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},
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})
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// Lemon ======================================== //
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export const lemon = generateColorFamily({
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name: "lemon",
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color: {
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hue: {
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start: 55,
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end: 55,
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curve: curve.linear,
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},
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saturation: {
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start: 85,
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end: 95,
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curve: curve.saturation,
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},
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lightness: {
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start: 97,
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end: 15,
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curve: curve.lightness,
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},
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},
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})
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// Citron ======================================== //
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export const citron = generateColorFamily({
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name: "citron",
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color: {
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hue: {
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start: 70,
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end: 70,
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curve: curve.linear,
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},
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saturation: {
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start: 85,
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end: 90,
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curve: curve.saturation,
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},
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lightness: {
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start: 97,
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end: 15,
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curve: curve.lightness,
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},
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},
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})
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// Lime ======================================== //
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export const lime = generateColorFamily({
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name: "lime",
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color: {
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hue: {
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start: 85,
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end: 85,
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curve: curve.linear,
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},
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saturation: {
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start: 85,
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end: 80,
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curve: curve.saturation,
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},
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lightness: {
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start: 97,
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end: 18,
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curve: curve.lightness,
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},
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},
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})
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// Green ======================================== //
|
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export const green = generateColorFamily({
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name: "green",
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color: {
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hue: {
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start: 108,
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end: 108,
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curve: curve.linear,
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},
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saturation: {
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start: 60,
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end: 70,
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curve: curve.saturation,
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},
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lightness: {
|
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start: 97,
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end: 18,
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curve: curve.lightness,
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},
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},
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})
|
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|
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// Mint ======================================== //
|
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export const mint = generateColorFamily({
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name: "mint",
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color: {
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hue: {
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start: 142,
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end: 142,
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curve: curve.linear,
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},
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saturation: {
|
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start: 60,
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end: 75,
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curve: curve.saturation,
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},
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lightness: {
|
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start: 97,
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end: 20,
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curve: curve.lightness,
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||||
},
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},
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})
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// Cyan ======================================== //
|
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|
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export const cyan = generateColorFamily({
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name: "cyan",
|
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color: {
|
||||
hue: {
|
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start: 179,
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end: 179,
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curve: curve.linear,
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},
|
||||
saturation: {
|
||||
start: 70,
|
||||
end: 80,
|
||||
curve: curve.saturation,
|
||||
},
|
||||
lightness: {
|
||||
start: 97,
|
||||
end: 20,
|
||||
curve: curve.lightness,
|
||||
},
|
||||
},
|
||||
})
|
||||
|
||||
// Sky ======================================== //
|
||||
|
||||
export const sky = generateColorFamily({
|
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name: "sky",
|
||||
color: {
|
||||
hue: {
|
||||
start: 195,
|
||||
end: 205,
|
||||
curve: curve.linear,
|
||||
},
|
||||
saturation: {
|
||||
start: 85,
|
||||
end: 90,
|
||||
curve: curve.saturation,
|
||||
},
|
||||
lightness: {
|
||||
start: 97,
|
||||
end: 15,
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||||
curve: curve.lightness,
|
||||
},
|
||||
},
|
||||
})
|
||||
|
||||
// Blue ======================================== //
|
||||
|
||||
export const blue = generateColorFamily({
|
||||
name: "blue",
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||||
color: {
|
||||
hue: {
|
||||
start: 218,
|
||||
end: 218,
|
||||
curve: curve.linear,
|
||||
},
|
||||
saturation: {
|
||||
start: 85,
|
||||
end: 70,
|
||||
curve: curve.saturation,
|
||||
},
|
||||
lightness: {
|
||||
start: 97,
|
||||
end: 15,
|
||||
curve: curve.lightness,
|
||||
},
|
||||
},
|
||||
})
|
||||
|
||||
// Indigo ======================================== //
|
||||
|
||||
export const indigo = generateColorFamily({
|
||||
name: "indigo",
|
||||
color: {
|
||||
hue: {
|
||||
start: 245,
|
||||
end: 245,
|
||||
curve: curve.linear,
|
||||
},
|
||||
saturation: {
|
||||
start: 60,
|
||||
end: 50,
|
||||
curve: curve.saturation,
|
||||
},
|
||||
lightness: {
|
||||
start: 97,
|
||||
end: 22,
|
||||
curve: curve.lightness,
|
||||
},
|
||||
},
|
||||
})
|
||||
|
||||
// Purple ======================================== //
|
||||
|
||||
export const purple = generateColorFamily({
|
||||
name: "purple",
|
||||
color: {
|
||||
hue: {
|
||||
start: 260,
|
||||
end: 270,
|
||||
curve: curve.linear,
|
||||
},
|
||||
saturation: {
|
||||
start: 65,
|
||||
end: 55,
|
||||
curve: curve.saturation,
|
||||
},
|
||||
lightness: {
|
||||
start: 97,
|
||||
end: 20,
|
||||
curve: curve.lightness,
|
||||
},
|
||||
},
|
||||
})
|
||||
|
||||
// Pink ======================================== //
|
||||
|
||||
export const pink = generateColorFamily({
|
||||
name: "pink",
|
||||
color: {
|
||||
hue: {
|
||||
start: 320,
|
||||
end: 330,
|
||||
curve: curve.linear,
|
||||
},
|
||||
saturation: {
|
||||
start: 70,
|
||||
end: 65,
|
||||
curve: curve.saturation,
|
||||
},
|
||||
lightness: {
|
||||
start: 97,
|
||||
end: 32,
|
||||
curve: curve.lightness,
|
||||
},
|
||||
},
|
||||
})
|
||||
|
||||
// Rose ======================================== //
|
||||
|
||||
export const rose = generateColorFamily({
|
||||
name: "rose",
|
||||
color: {
|
||||
hue: {
|
||||
start: 345,
|
||||
end: 345,
|
||||
curve: curve.linear,
|
||||
},
|
||||
saturation: {
|
||||
start: 90,
|
||||
end: 70,
|
||||
curve: curve.saturation,
|
||||
},
|
||||
lightness: {
|
||||
start: 97,
|
||||
end: 32,
|
||||
curve: curve.lightness,
|
||||
},
|
||||
},
|
||||
})
|
||||
@@ -0,0 +1,25 @@
|
||||
export interface Curve {
|
||||
name: string
|
||||
value: number[]
|
||||
}
|
||||
|
||||
export interface Curves {
|
||||
lightness: Curve
|
||||
saturation: Curve
|
||||
linear: Curve
|
||||
}
|
||||
|
||||
export const curve: Curves = {
|
||||
lightness: {
|
||||
name: "lightnessCurve",
|
||||
value: [0.2, 0, 0.75, 1.0],
|
||||
},
|
||||
saturation: {
|
||||
name: "saturationCurve",
|
||||
value: [0.67, 0.6, 0.55, 1.0],
|
||||
},
|
||||
linear: {
|
||||
name: "linear",
|
||||
value: [0.5, 0.5, 0.5, 0.5],
|
||||
},
|
||||
}
|
||||
@@ -0,0 +1,32 @@
|
||||
import chroma from "chroma-js"
|
||||
import * as colorFamily from "./ref/color"
|
||||
|
||||
const color = {
|
||||
lightgray: chroma
|
||||
.scale(colorFamily.lightgray.scale.values)
|
||||
.mode("lch")
|
||||
.colors(9),
|
||||
darkgray: chroma
|
||||
.scale(colorFamily.darkgray.scale.values)
|
||||
.mode("lch")
|
||||
.colors(9),
|
||||
red: chroma.scale(colorFamily.red.scale.values).mode("lch").colors(9),
|
||||
sunset: chroma.scale(colorFamily.sunset.scale.values).mode("lch").colors(9),
|
||||
orange: chroma.scale(colorFamily.orange.scale.values).mode("lch").colors(9),
|
||||
amber: chroma.scale(colorFamily.amber.scale.values).mode("lch").colors(9),
|
||||
yellow: chroma.scale(colorFamily.yellow.scale.values).mode("lch").colors(9),
|
||||
lemon: chroma.scale(colorFamily.lemon.scale.values).mode("lch").colors(9),
|
||||
citron: chroma.scale(colorFamily.citron.scale.values).mode("lch").colors(9),
|
||||
lime: chroma.scale(colorFamily.lime.scale.values).mode("lch").colors(9),
|
||||
green: chroma.scale(colorFamily.green.scale.values).mode("lch").colors(9),
|
||||
mint: chroma.scale(colorFamily.mint.scale.values).mode("lch").colors(9),
|
||||
cyan: chroma.scale(colorFamily.cyan.scale.values).mode("lch").colors(9),
|
||||
sky: chroma.scale(colorFamily.sky.scale.values).mode("lch").colors(9),
|
||||
blue: chroma.scale(colorFamily.blue.scale.values).mode("lch").colors(9),
|
||||
indigo: chroma.scale(colorFamily.indigo.scale.values).mode("lch").colors(9),
|
||||
purple: chroma.scale(colorFamily.purple.scale.values).mode("lch").colors(9),
|
||||
pink: chroma.scale(colorFamily.pink.scale.values).mode("lch").colors(9),
|
||||
rose: chroma.scale(colorFamily.rose.scale.values).mode("lch").colors(9),
|
||||
}
|
||||
|
||||
export { color }
|
||||
@@ -0,0 +1,66 @@
|
||||
import { Curve } from "./ref/curves"
|
||||
|
||||
export interface ColorAccessiblityValue {
|
||||
value: number
|
||||
aaPass: boolean
|
||||
aaaPass: boolean
|
||||
}
|
||||
|
||||
/**
|
||||
* Calculates the color contrast between a specified color and its corresponding background and foreground colors.
|
||||
*
|
||||
* @note This implementation is currently basic – Currently we only calculate contrasts against black and white, in the future will allow for dynamic color contrast calculation based on the colors present in a given palette.
|
||||
* @note The goal is to align with WCAG3 accessibility standards as they become stabilized. See the [WCAG 3 Introduction](https://www.w3.org/WAI/standards-guidelines/wcag/wcag3-intro/) for more information.
|
||||
*/
|
||||
export interface ColorAccessiblity {
|
||||
black: ColorAccessiblityValue
|
||||
white: ColorAccessiblityValue
|
||||
}
|
||||
|
||||
export type Color = {
|
||||
step: number
|
||||
contrast: ColorAccessiblity
|
||||
hex: string
|
||||
lch: number[]
|
||||
rgba: number[]
|
||||
isLight: boolean
|
||||
}
|
||||
|
||||
export interface ColorScale {
|
||||
colors: Color[]
|
||||
// An array of hex values for each color in the scale
|
||||
values: string[]
|
||||
}
|
||||
|
||||
export type ColorFamily = {
|
||||
name: string
|
||||
scale: ColorScale
|
||||
invertedScale: ColorScale
|
||||
}
|
||||
|
||||
export interface ColorFamilyHue {
|
||||
start: number
|
||||
end: number
|
||||
curve: Curve
|
||||
}
|
||||
|
||||
export interface ColorFamilySaturation {
|
||||
start: number
|
||||
end: number
|
||||
curve: Curve
|
||||
}
|
||||
|
||||
export interface ColorFamilyLightness {
|
||||
start: number
|
||||
end: number
|
||||
curve: Curve
|
||||
}
|
||||
|
||||
export interface ColorFamilyConfig {
|
||||
name: string
|
||||
color: {
|
||||
hue: ColorFamilyHue
|
||||
saturation: ColorFamilySaturation
|
||||
lightness: ColorFamilyLightness
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user