@atlaskit/tokens/dist/esm/utils/get-alpha.js

Design tokens are the single source of truth to name and store design decisions.

export function getAlpha(hex) {
  if (hex.length === 9) {
    var int = parseInt(hex.slice(7, 9), 16) / 255;
    return Number(parseFloat(int.toString()).toFixed(2));
  }
  return 1;
}