`device-cmyk()` CSS function

The device-cmyk() functional notation is used to express CMYK colors in a device dependent way, specifying the cyan, magenta, yellow, and black components.

This approach to color is useful when creating material to be output to a particular printer, when the output for particular ink combinations is known. CSS processors may attempt to approximate the color for other media; however, the end result is likely to be different from the printed result without knowing the precise output colorimetry. A @color-profile declaration for device-cmyk can specify the exact color profile for conversion.

Syntax

device-cmyk(0 81% 81% 30%);
device-cmyk(none 0.81 0.81 0.3);
device-cmyk(0 81% 81% 30% / .5);

Values

Functional notation: device-cmyk(C M Y K[ / A])

• C, M, Y, K

  • : Each a number between 0 and 1, a percentage between 0% and 100%, or the keyword none providing the cyan, magenta, yellow, and black components of CMYK color.

    [!NOTE] See Missing color components for more information on the effect of none.

• A Optional

  • : An <alpha-value> representing the alpha channel value of the color, where the number 0 corresponds to 0% (fully transparent) and 1 corresponds to 100% (fully opaque). Additionally, the keyword none can be used to explicitly specify no alpha channel.

Formal syntax

Specifications

Browser compatibility

Currently, no browsers support this feature.

See also

• CSS colors module
• @page