ColorXprez

#28403F

Gunmetal · dark cool teal

About #28403F

#28403F is a muted, dark shade in the teal family. On screen it is built from 16% red, 25% green and 25% blue; for print, its CMYK mix is 38% cyan, 0% magenta, 2% yellow and 75% black. Its overall feel is cool.

Of the common colour names it is similar to Gunmetal (ΔE 8.2); Charcoal comes next. Its complementary colour, directly opposite on the colour wheel, is #402829 — a espresso tone that gives the strongest contrast in hue.

Designers tend to use dark tones like #28403F for headings, body text, footers and dark-mode backgrounds. Put white text on top of it — 11.08:1, a WCAG AAA pass. Used as a text colour on white, it is readable too (11.08:1).

Colour codes

HEX
RGB
HSL
HSV / HSB
CMYK
CIELAB
Decimal
CSS
Red40
Green64
Blue63

Closest named colours

Gunmetal
#2A3439 · ΔE 8.2
Charcoal
#36454F · ΔE 9.0
Graphite
#383838 · ΔE 10.0

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

Text on #28403F

WCAG contrast for white and black text on this colour.

White heading text
Body copy set on gunmetal #28403F.
11.08:1AAA
Black heading text
Body copy set on gunmetal #28403F.
1.90:1Fail

Colour-blindness preview

How #28403F appears to people with the three most common types of colour-vision deficiency.

Normal vision
#28403F
Protanopia (no red cones)
#3D3E3F
Deuteranopia (no green cones)
#393A3F
Tritanopia (no blue cones)
#1F4140

Shades, tints & matching colours

Tints and shades

Complementary

Analogous

Triadic

Split complementary

Tetradic

Similar colours

Frequently asked questions

›What colour is #28403F?

#28403F is a muted, dark shade in the teal family. On screen it is built from 16% red, 25% green and 25% blue; for print, its CMYK mix is 38% cyan, 0% magenta, 2% yellow and 75% black. Its overall feel is cool.

›What text colour should I use on #28403F?

Use white text. White on #28403F has a contrast ratio of 11.08:1 (AAA).

›What colours go with #28403F?

Its complementary colour is #402829, and analogous partners are #284033 and #283540.