ColorXprez

#39374E

Charcoal · dark cool blue

About #39374E

#39374E is a dark, muted blue colour. Digitally that works out to 22% red, 22% green and 31% blue. In CMYK print terms it is 27% cyan, 29% magenta, 0% yellow and 69% black. Most people will perceive it as cool.

Visually it is similar to Charcoal (ΔE 12.3), with Gunmetal the next nearest named colour. Across the colour wheel sits #4C4E37 (umber), its complementary partner.

Because it is dark, it is most useful for headings, body text, footers and dark-mode backgrounds. White text reads best on it at 11.47:1 (a WCAG AAA pass). Used as a text colour on white, it is readable too (11.47:1).

Colour codes

HEX
RGB
HSL
HSV / HSB
CMYK
CIELAB
Decimal
CSS
Red57
Green55
Blue78

Closest named colours

Charcoal
#36454F · ΔE 12.3
Gunmetal
#2A3439 · ΔE 13.7
Prussian Blue
#003153 · ΔE 14.1

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

Text on #39374E

WCAG contrast for white and black text on this colour.

White heading text
Body copy set on charcoal #39374E.
11.47:1AAA
Black heading text
Body copy set on charcoal #39374E.
1.83:1Fail

Colour-blindness preview

How #39374E appears to people with the three most common types of colour-vision deficiency.

Normal vision
#39374E
Protanopia (no red cones)
#313A4F
Deuteranopia (no green cones)
#31394D
Tritanopia (no blue cones)
#343B3F

Shades, tints & matching colours

Tints and shades

Complementary

Analogous

Triadic

Split complementary

Tetradic

Similar colours

Frequently asked questions

›What colour is #39374E?

#39374E is a dark, muted blue colour. Digitally that works out to 22% red, 22% green and 31% blue. In CMYK print terms it is 27% cyan, 29% magenta, 0% yellow and 69% black. Most people will perceive it as cool.

›What text colour should I use on #39374E?

Use white text. White on #39374E has a contrast ratio of 11.47:1 (AAA).

›What colours go with #39374E?

Its complementary colour is #4C4E37, and analogous partners are #37414E and #45374E.