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(graphic arts)
A color model that synthesizes all colors as combinations of cyan, magenta, yellow, and black; it begins with white, and subtracts the appropriate color to yield the desired color. Also known as CMY.


cyan, magenta, yellow, key.

A colour model that describes each colour in terms of the quantity of each secondary colour (cyan, magenta, yellow), and "key" (black) it contains. The CMYK system is used for printing. For mixing of pigments, it is better to use the secondary colours, since they mix subtractively instead of additively. The secondary colours of light are cyan, magenta and yellow, which correspond to the primary colours of pigment (blue, red and yellow). In addition, although black could be obtained by mixing these three in equal proportions, in four-colour printing it always has its own ink. This gives the CMYK model. The K stands for "Key' or 'blacK,' so as not to cause confusion with the B in RGB.

Alternative colour models are RGB and HSB.


(Cyan Magenta Yellow blacK) The color space used for commercial printing and most color computer printers. In theory, cyan, magenta and yellow (CMY) can print all colors, but inks are not pure and black comes out muddy. The black ink (K) is required for quality printing. See color space, RGB and ink coverage.

Colors Are Separated
Before printing, the image is separated into CMYK inks that blend together when printed. (Image courtesy of Intergraph Computer Systems.)

A CMYK Printer
Color laser printers use four toner cartridges. Unlike commercial printing, in which the page is printed four times, each of the four inks in a laser printer is applied to the drum, and then the page is printed.

CMYK Ribbon
This is a dye sublimation or thermal wax transfer ribbon where four panels of dye or wax-based ink exist for each page, and each panel is the size of the page. After printing a page, the ribbon is advanced to the next four-color set. See dye sublimation printer and thermal wax transfer printer.

CMYK and More
For greater color accuracy, some inkjet printers use more than CMYK. The Canon printer (top) adds a gray (GY) cartridge. The Epson (bottom) includes lighter versions of cyan and magenta. See PGBK.
References in periodicals archive ?
So, both programmed colour patches were reproduced in three different ways: only by three process colours (in text: CMY), and by four process colours with different amount of the achromatic substitutions, as explained earlier (in text: CMYK standard, and CMYK by profile).
Since there is a look-up table to show what color each CMYK combination produces, the monitor "knows" what color to display.
The idea of overprinting CMYK onto a silver base has always been there," said Mr.
25 , 13oz scrim/reinforced banner material, printed full color CMYK on both sides with latex/UV inks Lamination to achieve glossy finish (if material isnt already glossy) Grommets on all 4 corners, banner needs to withstand winds when attached to the poles When completed, deliver banners to Communications & Marketing Division at 9551 W Sample Rd Coral Springs, FL 33065
The offering integrates Alwan's CMYK Optimizer version 3 and Bodoni pressSIGN tonal-value- increase measurement and correction software for the press.
Tenders are invited for 520 ea sticky note pads are 4" w x 6" h, cmyk.
Built-in preflighting finds and fixes problems, while JPEG files printed in separations can be output in CMYK and RGB files are either easily converted to CMYK using preset parameters or filtered out and reported as errors.
Atelier Nowosielski 1) Means: format: 320 x 210 mm (base x height) Volume: 112-120 pages paper Sora Matt Arte 135 g / m2 or equivalent with the following parameters: thickness, ISO 534 - 149 microns volume, DIN 53105 - 1 1 cm3 / g smoothness Bendtsen, ISO 8791-2 - 100 ml / min brightness ISO 2470 (D65 / 10) - 97% opacity, ISO 2471 - 98% color 4/4 CMYK dispersion varnish on pages with photographs 2) mount : hard, sewn threads tipping 4/0 CMYK endpaper 1/0 matte film Special, with a highly scratch-resistant UV selective convex 3) circulation: 500 copies.
5 and QuarkXPress; capability to recognize and write embedded ICC profiles, as well as create, edit, or fine-tune profiles using color corrections applied to an image; enhanced RGB, CMYK, and gray-scale processing (with direct opening of 16-bit RGB images and CMYK-to-CMYK conversions).