code: function XYZToSRGB ({ x, y, z, a }) {
      // Poynton, "Frequently Asked Questions About Color," page 10
      // Wikipedia: http://en.wikipedia.org/wiki/SRGB
      // Wikipedia: http://en.wikipedia.org/wiki/CIE_1931_color_space
  
      // Convert XYZ to linear RGB
      const r = clamp(3.2406 * x - 1.5372 * y - 0.4986 * z, 0, 1);
      const g = clamp(-0.9689 * x + 1.8758 * y + 0.0415 * z, 0, 1);
      const b = clamp(0.0557 * x - 0.2040 * y + 1.0570 * z, 0, 1);
  
      return linearRGBToSRGB({ r, g, b, a });
  }
docs: Convert CIE XYZ to sRGB with the D65 white point