soft white
light grey
bright purple
soft blue
deep purple
Klein Bluenear-monochromatic · cool
Klein Blue colour palettes
International Klein Blue inspired ultramarine, chalk white and blue-black, with a pale blue supporting tint. Explore 11 palettes.
Browse all 78 palette collections
Colour pairings & usage tips
A pairing to start with.
In Indigo & Pearl, #171F33 against #F3F2F1 has a contrast ratio of 14.67:1. This pair meets the WCAG AA contrast threshold for normal text. This checks opaque colours only; other pairings, transparency and gradients need their own checks.
The five swatches span 24–96% OKLCH lightness. Try different colour roles in the palette generator.