vinaypillai / ac-colors – конвертер цвет RGB, HSL, HEX, XYZ, LAB, LCHab, LUV, и LCHuv

// Node.js users will need to import the module
const Color = require("ac-colors");
let black = new Color();
console.log(black.hex); // #000000

https://github.com/vinaypillai/ac-colors