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Editorial Team
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Asked: 2026-05-26T13:11:39+00:00

Is there any way to convert HEX encoded RGB colors to CMYK in PHP?

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Is there any way to convert HEX encoded RGB colors to CMYK in PHP? I have tried this PHP: HEX to CMYK but there is a bit difference in the colors, may be the above answer converts hex to RGB then converts it to CMYK.

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1 Answer

  1. Editorial Team

    This website goes through your problem in detail

    An excerpt

    The trouble with CMYK is it’s pretty rough. The technique is only
    capable reproducing some 60 or 70% of 16.7 million colours visible to
    the human eye, and which we can display on a computer screen. The RGB
    model can represent every one of these colours, and therefore every
    colour that CMYK can represent; but the converse is not true. The
    diagram on the right shows some of CMYK’s closest approximations to
    some bright screen colours.

    This is the reason for your "bit difference" in colors.
    Hope this helps.

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