CMYK color model

The CMYK color model (also known as process color, or four color) is a subtractive color model, based on the CMY color model, used in color printing, and is also used to describe the printing process itself. The abbreviation CMYK refers to the four ink plates used: cyan, magenta, yellow, and key (most often black). The CMYK model works by partially or entirely masking colors on a lighter, usually white, background.

Extends: [Color space](https://wikipedia.org.ai/Color space), Printing, [Printing terminology](https://wikipedia.org.ai/Printing terminology)