RGB to CMYK
Converts a color from RGB to CMYK and back using a general formula, so the result is approximate.
A screen builds color out of light, while a print shop builds it out of inks: cyan, magenta, yellow, and black. This conversion uses a general formula that ignores paper and press settings, so treat the numbers as an estimate.
For a print-ready layout, convert colors in a graphics editor with the color profile supplied by your print shop. Bright screen colors, such as the vivid blue #0080FF, often cannot be reproduced with inks and come out duller on paper.
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