The CMYK color model (process color, four color) is a subtractive color model, used in color printing, and is also used to describe the printing process itself. CMYK refers to the four inks used in some color printing: cyan, magenta, yellow, and key (black).
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The Pantone Matching System (PMS), is a color palette platform that is used in various business sectors, mostly in printing and design, but also on the manufacturing of dyes, textile and plastic.