CMYK: The CMYK color model, is used in color printing, and is also used to describe the printing process itself. CMYK refers to the four ink plates used in color printing: cyan, magenta, yellow, and black. This is what we use. RGB: The name comes from the initials of the three additive primary colors, red, green, and blue. The main purpose of the RGB color model is for displaying of images on electronic screens, such as televisions and computers. The RGB color mode doesn’t translate well to print, which uses the CMYK system, resulting in colors that change/shift when printed. PMS: The Pantone Management System is a color matching system based on proprietary color codes. They can look very dull when printed and most printers do not use this anymore.