hexToXyz function
Implementation
XYZ hexToXyz(hex) {
final rgb = hexToRgb(hex);
final r = rgb.r / 255;
final g = rgb.g / 255;
final b = rgb.b / 255;
final x = (0.4124 * r + 0.3576 * g + 0.1805 * b) * 100;
final y = (0.2126 * r + 0.7152 * g + 0.0722 * b) * 100;
final z = (0.0193 * r + 0.1192 * g + 0.9505 * b) * 100;
return XYZ(x: x, y: y, z: z);
}