ColorXprez

#3E4E59

Charcoal · dark cool blue

About #3E4E59

#3E4E59 is a dark, muted blue colour. Digitally that works out to 24% red, 31% green and 35% blue. In CMYK print terms it is 30% cyan, 12% magenta, 0% yellow and 65% black. Most people will perceive it as cool.

Visually it is very close to Charcoal (ΔE 3.9), with Gunmetal the next nearest named colour. Across the colour wheel sits #59493E (umber), 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 — 8.61:1, a WCAG AAA pass. Used as a text colour on white, it is readable too (8.61:1).

Colour codes

HEX
RGB
HSL
HSV / HSB
CMYK
CIELAB
Decimal
CSS
Red62
Green78
Blue89

Closest named colours

Charcoal
#36454F · ΔE 3.9
Gunmetal
#2A3439 · ΔE 11.9
Graphite
#383838 · ΔE 12.6

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

Text on #3E4E59

WCAG contrast for white and black text on this colour.

White heading text
Body copy set on charcoal #3E4E59.
8.61:1AAA
Black heading text
Body copy set on charcoal #3E4E59.
2.44:1Fail

Colour-blindness preview

How #3E4E59 appears to people with the three most common types of colour-vision deficiency.

Normal vision
#3E4E59
Protanopia (no red cones)
#494E5A
Deuteranopia (no green cones)
#464B59
Tritanopia (no blue cones)
#365151

Shades, tints & matching colours

Tints and shades

Complementary

Analogous

Triadic

Split complementary

Tetradic

Similar colours

Frequently asked questions

›What colour is #3E4E59?

#3E4E59 is a dark, muted blue colour. Digitally that works out to 24% red, 31% green and 35% blue. In CMYK print terms it is 30% cyan, 12% magenta, 0% yellow and 65% black. Most people will perceive it as cool.

›What text colour should I use on #3E4E59?

Use white text. White on #3E4E59 has a contrast ratio of 8.61:1 (AAA).

›What colours go with #3E4E59?

Its complementary colour is #59493E, and analogous partners are #3E5957 and #3E4159.