A muddy brown is the closest you’ll come. And, while, the RGB model easily produces nearly any color you can imagine, the CMYK system is trickier to work with and far brighter people than I have ...

C235 wheel, unifying RGB, CMYK and HSV. The compressed C235 wheel unifies the CMYK, RGB, and HSV colour systems using a much smaller number of raw colours (key values) to represent all 2563 colours.