Function to turn hex colour values into p3 color values

hexToP3.js

const hexToP3 = (string) => {
  var aRgbHex = string.replace("#", "").match(/.{1,2}/g);
  var aRgb = [
    (parseInt(aRgbHex[0], 16) / 255).toFixed(2),
    (parseInt(aRgbHex[1], 16) / 255).toFixed(2),
    (parseInt(aRgbHex[2], 16) / 255).toFixed(2),
  ];
  return `color(display-p3 ${aRgb.join(" ")})`;
};