cmyk color chart to use in prepress and printing. Used to pick color swatches. Red and magenta are base colors and others has been created combining them. tints and ink catalog for graphic arts Shutterstock Image - cmyk color chart to use in prepress and printing. Used to pick color swatches. Red and magenta are base colors and others has been created combining them. tints and ink catalog for graphic arts - ID: 1124197805