four-color

[ fawr-kuhl-er, fohr- ]
/ ˈfɔrˌkʌl ər, ˈfoʊr- /

adjective Printing.

noting or pertaining to a process for reproducing colored illustrations in a close approximation to their original hues by photographing the artwork successively through magenta, cyan, and yellow color-absorbing filters to produce four plates that are printed successively with yellow, red, blue, and black inks.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019