Black & White Palette
Generate harmonic colours from a base HEX, then check their contrast against white and black backgrounds according to WCAG 2.1 (AA / AAA).
← pick a colour or type a hex code, then press enter or click generate.
base: #3498db
contrast ratings (normal text)
- AA ≥ 4.5:1
- AAA ≥ 7:1
- Fail below AA
large text: AA ≥ 3:1, AAA ≥ 4.5:1 – shown inside each card.