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A color space describes an environment in which colors are represented, ordered, compared, or computed. A color space defines a one-, two-, three-, or four-dimensional environment whose components (or color components) represent intensity values. A color component is also referred to as a color channel . For example, RGB space is a three-dimensional color space whose stimuli are the red, green, and blue intensities that make up a given color; and red, green, and blue are color channels. Visually, these spaces are often represented by various solid shapes, such as cubes, cones, or polyhedra.
For additional information on color components, see Color-Component Values, Color Values, and Colors .
The ColorSync Manager directly supports several different color spaces to give you the convenience of working in whatever kind of color data most suits your needs. The ColorSync color spaces fall into several groups, or base families. They are:
CMY-Based Color Spaces
All color spaces within a base family are related to each other by very simple mathematical formulas or differ only in details of storage format.