Free Tools
HEX, RGB, CMYK and HSL: Which Colour Format Should You Use?
HEX, RGB, CMYK and HSL are four ways of describing the same colour. HEX is for web code, RGB for screens and design tools, HSL for adjusting shades by eye, and CMYK for print. This guide works one colour — a teal, #0E7C7B — through all four formats, with a decision table and hand-conversion examples.
Asad · Oct 11, 2026 Read article →