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

EN Using Palettes (Color LaserJet, 5, 5M, DeskJet) C-15
Device CMY and Device-Independent Palettes
A CID command specifying either a device-independent color space
or the Device CMY color space creates the same default palettes.
This is because device-independent colors are transformed into the
printer's native space, Device CMY.
Bits/Index = 1
Bits/Index = 2
Bits/Index = 3 through 8
Index Color
0White
1Black
Index Color
0White
1Cyan
2 Magenta
3Black
Index Color
0White
1Cyan
2 Magenta
3Blue
4Yellow
5Green
6Red
7Black
n > 7 Black