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pex-color

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Color utilities (css, p3, hex, hsl, hsv, hwb, lab, lch, xyz, okhsl, okhsv, oklab, oklch, hpluv, hsluv, lchuv, bytes) for PEX.

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import { fromXYZD65, toXYZD65 } from "./xyz.js"; import { lchToLuv, luvToXyz, xyzToLuv, luvToLch } from "./utils.js"; /** * @typedef {number[]} lchuv CIELChuv Luminance Chroma Hue. * * All components in the range 0 <= x <= 1 * @see {@link https://en.wikipedia.org/wiki/CIELUV} */ /** * Updates a color based on LCHuv values and alpha. * @alias module:pex-color.fromLCHuv * @param {import("./color.js").color} color * @param {number} l * @param {number} c * @param {number} h * @param {number} [a] * @returns {import("./color.js").color} */ export function fromLCHuv(color, l, c, h, a) { lchToLuv(l, c, h, color); luvToXyz(color[0], color[1], color[2], color); return fromXYZD65(color, color[0], color[1], color[2], a); } /** * Returns a LCHuv representation of a given color. * @alias module:pex-color.toLCHuv * @param {import("./color.js").color} color * @param {Array} out * @returns {lchuv} */ export function toLCHuv(color, out = []) { toXYZD65(color, out); xyzToLuv(out[0], out[1], out[2], out); return luvToLch(out[0], out[1], out[2], out); }