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Chapter 12. Understanding and Applying C... > The Other Color Modes: HSB and Grays...

The Other Color Modes: HSB and Grayscale

HSB (Hue, Saturation, and Brightness) is a color model designed according to the way the human eye works. Hue is the color itself—red, yellow, blue, and so on. Saturation is how pure the color is—that is, how much gray is perceived. Brightness is, as you would guess, the darkness or lightness of the color. Illustrator does not produce HSB output but allows you to define RGB or CMYK colors in terms of HSB values. Most Illustrator users unknowingly employ HSB regularly. The default setting for the Color Picker is Hue (see Figure 12.11).

Figure 12.11. The Color Picker is set for Red (R), rather than the default of Hue (H). Illustrator uses fractions in the Color palette to maintain the integrity of RGB colors.



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