LAY.hsla( h, s, l, a )

Returns LAY.Color representing in hsla format the color hsla(h,s,l,a).

h: (number) A number between 0-360 representing hue
s: (number) A number between 0-1 representing saturation
l: (number) A number between 0-1 representing lightness
a: (number) A number between 0-1 representing alpha (opacity)