code: function setLab(color, l, a, b) {
      var white = [ 95.047, 100.000, 108.883 ]; //for X, Y, Z
  
      var y = (l + 16) / 116;
      var x = a / 500 + y;
      var z = y - b / 200;
  
      x = fromLabValueToXYZValue(x, white[0]);
      y = fromLabValueToXYZValue(y, white[1]);
      z = fromLabValueToXYZValue(z, white[2]);
  
      return setXYZ(color, x, y, z);
  }
docs: Updates a color based on l, a, b, component values
  @param  {Array} color   - RGBA color array [r,g,b,a] to update
  @param  {Number} l - l component (0..100)
  @param  {Number} a - a component (-128..127)
  @param  {Number} b - b component (-128..127)
  @return {Array} - updated RGBA color array [r,g,b,a] (0..1)