ColorXprez

#283F45

Charcoal · dark cool teal

About #283F45

#283F45 is a dark, muted teal colour. Digitally that works out to 16% red, 25% green and 27% blue. In CMYK print terms it is 42% cyan, 9% magenta, 0% yellow and 73% black. Most people will perceive it as cool.

Visually it is very close to Charcoal (ΔE 5.3), with Gunmetal the next nearest named colour. Across the colour wheel sits #452E28 (espresso), 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 — 11.13:1, a WCAG AAA pass. Used as a text colour on white, it is readable too (11.13:1).

Colour codes

HEX
RGB
HSL
HSV / HSB
CMYK
CIELAB
Decimal
CSS
Red40
Green63
Blue69

Closest named colours

Charcoal
#36454F · ΔE 5.3
Gunmetal
#2A3439 · ΔE 6.2
Graphite
#383838 · ΔE 9.8

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

Text on #283F45

WCAG contrast for white and black text on this colour.

White heading text
Body copy set on charcoal #283F45.
11.13:1AAA
Black heading text
Body copy set on charcoal #283F45.
1.89:1Fail

Colour-blindness preview

How #283F45 appears to people with the three most common types of colour-vision deficiency.

Normal vision
#283F45
Protanopia (no red cones)
#3B3E45
Deuteranopia (no green cones)
#363A45
Tritanopia (no blue cones)
#1D4141

Shades, tints & matching colours

Tints and shades

Complementary

Analogous

Triadic

Split complementary

Tetradic

Similar colours

Frequently asked questions

›What colour is #283F45?

#283F45 is a dark, muted teal colour. Digitally that works out to 16% red, 25% green and 27% blue. In CMYK print terms it is 42% cyan, 9% magenta, 0% yellow and 73% black. Most people will perceive it as cool.

›What text colour should I use on #283F45?

Use white text. White on #283F45 has a contrast ratio of 11.13:1 (AAA).

›What colours go with #283F45?

Its complementary colour is #452E28, and analogous partners are #28453C and #283145.