HP PCL/PJL reference (PCL 5 Color) - Technical Reference Manual

EN Using Color Modes (Color LaserJet, 5, 5M, DeskJet) B-5
The Simple Color palettes are shown below:
Single Plane (value = 1)
3-Plane RGB (value = 3)
3-Plane CMY (value = –3)
Index Color
0White
1Black
Index Color
0Black
1Red
2 Green
3Yellow
4Blue
5 Magenta
6Cyan
7White
Index Color
0White
1Cyan
2 Magenta
3Blue
4Yellow
5 Green
6Red
7Black