code: function rgb2lab(rgbR, rgbG, rgbB) {
  	const [ xyzX, xyzY, xyzZ ] = rgb2xyz(rgbR, rgbG, rgbB);
  	const [ labL, labA, labB ] = xyz2lab(xyzX, xyzY, xyzZ);
  
  	return [ labL, labA, labB ];
  }
docs: /* Convert between RGB and Lab
  /* ========================================================================== 
  @func rgb2lab
  @desc Return a CIE LAB color from an RGB color
  @param {Number} r - Red (0 - 100)
  @param {Number} g - Green (0 - 100)
  @param {Number} b - Blue (0 - 100)
  @return {ArrayLAB}
  @example
  rgb2lab(100, 0, 0) // => [54.29, 80.82, 69.88]