ColorXprez

#424A71

Prussian Blue · dark cool blue

About #424A71

#424A71 is a dark, muted blue colour. Digitally that works out to 26% red, 29% green and 44% blue. In CMYK print terms it is 42% cyan, 35% magenta, 0% yellow and 56% black. Most people will perceive it as cool.

Visually it is somewhere between Prussian Blue and Charcoal (ΔE 15.4), with Charcoal the next nearest named colour. Across the colour wheel sits #716942 (coffee), its complementary partner.

Because it is dark, it is most useful for headings, body text, footers and dark-mode backgrounds. Put white text on top of it — 8.57:1, a WCAG AAA pass. Used as a text colour on white, it is readable too (8.57:1).

Colour codes

HEX
RGB
HSL
HSV / HSB
CMYK
CIELAB
Decimal
CSS
Red66
Green74
Blue113

Closest named colours

Prussian Blue
#003153 · ΔE 15.4
Charcoal
#36454F · ΔE 19.4
Oxford Blue
#002147 · ΔE 19.9

ΔE measures visible difference: under 2 is barely noticeable, over 10 is clearly different.

Text on #424A71

WCAG contrast for white and black text on this colour.

White heading text
Body copy set on prussian blue #424A71.
8.57:1AAA
Black heading text
Body copy set on prussian blue #424A71.
2.45:1Fail

Colour-blindness preview

How #424A71 appears to people with the three most common types of colour-vision deficiency.

Normal vision
#424A71
Protanopia (no red cones)
#3D4E73
Deuteranopia (no green cones)
#394A70
Tritanopia (no blue cones)
#335258

Shades, tints & matching colours

Tints and shades

Complementary

Analogous

Triadic

Split complementary

Tetradic

Similar colours

Frequently asked questions

›What colour is #424A71?

#424A71 is a dark, muted blue colour. Digitally that works out to 26% red, 29% green and 44% blue. In CMYK print terms it is 42% cyan, 35% magenta, 0% yellow and 56% black. Most people will perceive it as cool.

›What text colour should I use on #424A71?

Use white text. White on #424A71 has a contrast ratio of 8.57:1 (AAA).

›What colours go with #424A71?

Its complementary colour is #716942, and analogous partners are #426271 and #514271.