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CMYK VS. RGB
 

CMYK - Cyan, Magenta, Yellow, Black

Four-color printing process that uses the aforementioned inks. It is also known as subtractive color, or process printing. All color work submitted to APS must be saved as a CMYK file.

RGB - Red, Green, Blue

Color process used by computer displays. The presence of all three colors as light waves is perceived by the eye as white; the absence of light is perceived as black. This is also known as additive color. RGB color is very different from CMYK color. The range of colors that can be generated by RGB mode is much larger than those that can be generated by CMYK. Please note: although graphics created and saved in RGB display well in electronic media such as the Web, screen displays, and CD-ROM products, they can never be used in print products. All work submitted in color must be in CMYK.