Rainbow
Red	Orange	Green	Blue
#FF0000	#FFA500	#008000	#0000ff
(255,0,0)	(255,165,0)	(0,128,0)	(0,0,255)
(0, 100%, 50%)	(0, 61%, 50%)	(120, 100%, 40%)	(240,100%,50%)