HEX vs RGB vs CMYK
Compare HEX, RGB, and CMYK — when each format wins for web, UI, and print workflows.
Screens vs ink
HEX and RGB describe light on screens. CMYK describes ink on paper. Converting between them is an approximation.
Practical rule
Design digital products in HEX/RGB. Hand off print assets in CMYK profiles from a design or print tool — not from a quick web converter alone.