*Also the official names of the colours may not be that accurate...
"Purple" is more like some kind of Magenta while "Magenta" is more like some sort of purpleMAuve and Mauve a Purple... and so on.
"White" is actually grey while "bright whit"e is white...
Cyan is quite mixable with blues, and lighter Cyan are also lighter blues.
Anyway, the CPC palette actually covers a complete RGB cube... Yet in a simplified way. Per exemple an unsatured "Brown" would be a cross between Orange and Black/grey/white... Yet the CPC has only one flashy medium Orange.