#424B71
Prussian Blue · dark cool blue
About #424B71
#424B71 is a muted, dark shade in the blue family. On screen it is built from 26% red, 29% green and 44% blue; for print, its CMYK mix is 42% cyan, 34% magenta, 0% yellow and 56% black. Its overall feel is cool.
Of the common colour names it is somewhere between Prussian Blue and Charcoal (ΔE 15.4); Charcoal comes next. Its complementary colour, directly opposite on the colour wheel, is #716842 — a coffee tone that gives the strongest contrast in hue.
Designers tend to use dark tones like #424B71 for headings, body text, footers and dark-mode backgrounds. Put white text on top of it — 8.48:1, a WCAG AAA pass. Used as a text colour on white, it is readable too (8.48:1).
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Closest named colours
ΔE measures visible difference: under 2 is barely noticeable, over 10 is clearly different.
Text on #424B71
WCAG contrast for white and black text on this colour.
Colour-blindness preview
How #424B71 appears to people with the three most common types of colour-vision deficiency.
Shades, tints & matching colours
Similar colours
Frequently asked questions
›What colour is #424B71?
#424B71 is a muted, dark shade in the blue family. On screen it is built from 26% red, 29% green and 44% blue; for print, its CMYK mix is 42% cyan, 34% magenta, 0% yellow and 56% black. Its overall feel is cool.
›What text colour should I use on #424B71?
Use white text. White on #424B71 has a contrast ratio of 8.48:1 (AAA).
›What colours go with #424B71?
Its complementary colour is #716842, and analogous partners are #426271 and #514271.