lib-colors/dist/rgb/helpers/rgb_to_cmyk.helper.js

Simple node.js library for work with colors

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.rgbToCmyk = rgbToCmyk;
function rgbToCmyk(rgb) {
    let { r, g, b, a } = { ...rgb };
    r /= 255;
    g /= 255;
    b /= 255;
    const k = 1 - Math.max(r, g, b);
    if (k === 1) {
        return { c: 0, m: 0, y: 0, k: 100, a };
    }
    const c = (1 - r - k) / (1 - k);
    const m = (1 - g - k) / (1 - k);
    const y = (1 - b - k) / (1 - k);
    return {
        c: Math.round(c * 100),
        m: Math.round(m * 100),
        y: Math.round(y * 100),
        k: Math.round(k * 100),
        a,
    };
}