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The CMYK color model (also known as process color, or four color) is a subtractive color model, based on the CMY color model, used in color printing, and is also used to describe the printing process itself. The abbreviation CMYK refers to the four ink plates used: cyan, magenta, yellow, and key (most often black).
The CMYK coordinates describe the amounts of each of cyan, magenta, yellow and key pigments (such as inks) which are mixed subtractively in order to create a particular color. In Wikipedia, the coordinates are presented as four numbers separated by commas, as in this example for the color orange:
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Yellow CMYK color space coordinate k Black CMYK color space coordinate cmykref The reference for CMYK coordinates, if different from the main source. Other parameters bgcolor (Optional) Color in hex format used for background behind the name of the color. Defaults to value specified by the hex parameter. caption
The most noticeable result of using light cyan and light magenta inks is the removal of a distinct and harsh dither dot appearance in prints that use light shades of cyan or magenta produced with only the CMYK inks. Usually when printing a dark color the printer will saturate an area with colored ink dots, and conversely, for a light color it ...
It was designed to encompass most of the colors achievable on CMYK color printers, but by using RGB primary chromaticities on a device such as the computer display. The Adobe RGB color space encompasses roughly 50% of the visible colors specified by the Lab color space , improving upon the gamut of the sRGB color space primarily in cyan-greens.
First, "color" refers to the human brain's subjective interpretation of combinations of a narrow band of wavelengths of light. For this reason, the definition of "color" is not based on a strict set of physical phenomena.