text: /*
  	Convert CIE XYZ D65 values to Rec. 2020
  
  	References:
  		* https://drafts.csswg.org/css-color/#color-conversion-code
  		* http://www.brucelindbloom.com/index.html?Eqn_RGB_XYZ_Matrix.html
  		* https://www.itu.int/rec/R-REC-BT.2020/en
  */
  
  const α = 1.09929682680944;
  const β = 0.018053968510807;
  const gamma = v => {
  	const abs = Math.abs(v);
  	if (abs > β) {
  		return (Math.sign(v) || 1) * (α * Math.pow(abs, 0.45) - (α - 1));
  	}
  	return 4.5 * v;
  };
  
  const convertXyz65ToRec2020 = ({ x, y, z, alpha }) => {
  	let res = {
  		mode: 'rec2020',
  		r: gamma(
  			x * 1.7166511879712683 -
  				y * 0.3556707837763925 -
  				0.2533662813736599 * z
  		),
  		g: gamma(
  			x * -0.6666843518324893 +
  				y * 1.6164812366349395 +
  				0.0157685458139111 * z
  		),
  		b: gamma(
  			x * 0.0176398574453108 -
  				y * 0.0427706132578085 +
  				0.9421031212354739 * z
  		)
  	};
  	if (alpha !== undefined) {
  		res.alpha = alpha;
  	}
  	return res;
  };
  
  export default convertXyz65ToRec2020;
  