CMYK to CIELAB Converter
Convert a CMYK colour to CIELAB, with a live swatch and every other notation alongside.
To convert CMYK to CIELAB, paste your colour above — any recognisable notation is accepted, including named CSS colours — and every format is shown at once with a live swatch. CIELAB was designed to model human vision and underpins colour-difference calculations. It is the reference space rather than an authoring one.
Runs in your browserAbout converting CMYK to LAB
CMYK is a print colour space, and the conversion is an approximation: screens emit light, ink absorbs it, and vivid RGB colours have no CMYK equivalent at all. CIELAB was designed to model human vision and underpins colour-difference calculations. It is the reference space rather than an authoring one. Because CMYK depends on the ink, paper and press, a conversion without a colour profile is an estimate — send artwork to a printer in their profile rather than relying on a generic number.