Color utilities

import {
  formatHex,
  parseColor
} from "@jolly-pixel/ui";

const rgba = parseColor("#ff660080");
const hex = rgba === null ? null : formatHex(rgba, true);

parseColor(input) accepts three-digit, six-digit, and eight-digit hex forms and returns RGBA or null. Four-digit shorthand is rejected. RGBA has numeric r, g, b, and a channels. formatHex(value, alpha?) returns normalized lowercase hex text.