Abstract: A substantially universal range of color standards over the visible spectrum is displayed for visual observation, comparison with extraneous colors and for interactive color processing in a color computer processing system. In the comprehensive set, standardized colors are defined by hue supplemented by black and white content related in a visual format. Thus, a set of discrete hue values across the visible spectrum, typically 24, is displayed in a circular array for selections of hue. Each selected hue is displayed together with a range of colors obtained by combining black and white content to produce a set of colors associated with that hue. Thus a very large number of colors may be viewed for visual effect and comparison with extraneous colors to make selections of color sets, harmonized color combinations, or the like. Any of the colors are available for interactive color processing, such as editing, graphical development or identification of colors and color relationships, either singly or in sets.