code: function hsl2xyz(hslH, hslS, hslL) {
  	const [ rgbR, rgbG, rgbB ] = hsl2rgb(hslH, hslS, hslL);
  	const [ xyzX, xyzY, xyzZ ] = rgb2xyz(rgbR, rgbG, rgbB);
  
  	return [ xyzX, xyzY, xyzZ ];
  }
docs: /* Convert between HSL and XYZ
  /* ========================================================================== 
  @func hsl2xyz
  @desc Return an XYZ color from an HSL color
  @param {Number} h - Hue Angle (0 - 360)
  @param {Number} s - Saturation (0 - 100)
  @param {Number} l - Lightness (0 - 100)
  @return {ArrayXYZ}
  @example
  hsl2xyz(0, 100, 50) // => [41.25, 21.27, 1.93]