ColorXprez

#313D3F

Gunmetal · dark neutral

About #313D3F

#313D3F is a near-neutral, dark shade in the teal family. On screen it is built from 19% red, 24% green and 25% blue; for print, its CMYK mix is 22% cyan, 3% magenta, 0% yellow and 75% black. It is close to neutral, so it sits comfortably next to both warm and cool colours.

Of the common colour names it is very close to Gunmetal (ΔE 4.4); Graphite comes next. Its complementary colour, directly opposite on the colour wheel, is #3F3331 — a graphite tone that gives the strongest contrast in hue.

Designers tend to use dark tones like #313D3F for headings, body text, footers and dark-mode backgrounds. Put white text on top of it — 11.23:1, a WCAG AAA pass. Used as a text colour on white, it is readable too (11.23:1).

Colour codes

HEX
RGB
HSL
HSV / HSB
CMYK
CIELAB
Decimal
CSS
Red49
Green61
Blue63

Closest named colours

Gunmetal
#2A3439 · ΔE 4.4
Graphite
#383838 · ΔE 5.4
Charcoal
#36454F · ΔE 6.3

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

Text on #313D3F

WCAG contrast for white and black text on this colour.

White heading text
Body copy set on gunmetal #313D3F.
11.23:1AAA
Black heading text
Body copy set on gunmetal #313D3F.
1.87:1Fail

Colour-blindness preview

How #313D3F appears to people with the three most common types of colour-vision deficiency.

Normal vision
#313D3F
Protanopia (no red cones)
#3B3C3F
Deuteranopia (no green cones)
#383A3F
Tritanopia (no blue cones)
#2D3E3E

Shades, tints & matching colours

Tints and shades

Complementary

Analogous

Triadic

Split complementary

Tetradic

Similar colours

Frequently asked questions

›What colour is #313D3F?

#313D3F is a near-neutral, dark shade in the teal family. On screen it is built from 19% red, 24% green and 25% blue; for print, its CMYK mix is 22% cyan, 3% magenta, 0% yellow and 75% black. It is close to neutral, so it sits comfortably next to both warm and cool colours.

›What text colour should I use on #313D3F?

Use white text. White on #313D3F has a contrast ratio of 11.23:1 (AAA).

›What colours go with #313D3F?

Its complementary colour is #3F3331, and analogous partners are #313F3A and #31363F.