L*
= 100
white
a*
= -100
green
b*
= 100
yellow
b*
= -100
blue
a*
= 100
red
L*
= 0
black
PLATE 3
Lab
color space (“Lab Color Spaces,” page 250)
L*a*b *
RGB
CMYK
PLATE 4
Color gamuts (“Lab Color Spaces,” page 250)