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Color Issues

Four-color process printing requires artwork in the CMYK color mode. Although work can be created in RGB, it must eventually be converted to CMYK for printing. In addition to the process colors, you can incorporate spot colors into your work and even reduce the number of colors below four for artistic or budgetary reasons.

CMYK Versus RGB Color

As discussed in Chapter 5, the two primary color modes in Photoshop are CMYK and RGB. RGB (red, green, blue) is used by light-generating hardware, such as monitors and projectors. It is the color mode of the World Wide Web because the Web is monitor based. CMYK (cyan, magenta, yellow, black) is the color mode of professional printing, which uses inks of these four colors to reproduce images.


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