hue	index	red	green	blue
c	i	i[255]	i[255]	i[255]
white	0	255	255	255
black	1	0	0	0
grey	2	190	190	190
red	3	255	0	0
orange	4	255	128	0
yellow	5	255	255	0
green	6	0	255	0
blue	7	0	0	255
purple	8	160	32	240