Color models & codes

CMYK

The cyan, magenta, yellow and black ink model used in printing, written as percentages of each ink.

Also called CMYK color, four-color process

CMYK describes a printed color as percentages of cyan, magenta, yellow and black (K for “key”) ink. cmyk(86, 47, 0, 0) is a strong blue.

CMYK has a smaller gamut than RGB, so some vivid screen colors, especially electric blues and greens, cannot be printed exactly. Converting before you send a file to print avoids surprises.

Guides that cover CMYK