ColorXprez

#455E5B

Charcoal · dark cool teal

About #455E5B

#455E5B is a muted, dark shade in the teal family. On screen it is built from 27% red, 37% green and 36% blue; for print, its CMYK mix is 27% cyan, 0% magenta, 3% yellow and 63% black. Its overall feel is cool.

Of the common colour names it is similar to Charcoal (ΔE 13.4); Dark Teal comes next. Its complementary colour, directly opposite on the colour wheel, is #5E4548 — a eggplant tone that gives the strongest contrast in hue.

Designers tend to use dark tones like #455E5B for headings, body text, footers and dark-mode backgrounds. Put white text on top of it — 6.99:1, a WCAG AA pass. Used as a text colour on white, it is readable too (6.99:1).

Colour codes

HEX
RGB
HSL
HSV / HSB
CMYK
CIELAB
Decimal
CSS
Red69
Green94
Blue91

Closest named colours

Charcoal
#36454F · ΔE 13.4
Dark Teal
#014D4E · ΔE 14.1
Eucalyptus
#5F8575 · ΔE 17.0

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

Text on #455E5B

WCAG contrast for white and black text on this colour.

White heading text
Body copy set on charcoal #455E5B.
6.99:1AA
Black heading text
Body copy set on charcoal #455E5B.
3.01:1AA Large

Colour-blindness preview

How #455E5B appears to people with the three most common types of colour-vision deficiency.

Normal vision
#455E5B
Protanopia (no red cones)
#5B5B5B
Deuteranopia (no green cones)
#57585B
Tritanopia (no blue cones)
#3E5F5D

Shades, tints & matching colours

Tints and shades

Complementary

Analogous

Triadic

Split complementary

Tetradic

Similar colours

Frequently asked questions

›What colour is #455E5B?

#455E5B is a muted, dark shade in the teal family. On screen it is built from 27% red, 37% green and 36% blue; for print, its CMYK mix is 27% cyan, 0% magenta, 3% yellow and 63% black. Its overall feel is cool.

›What text colour should I use on #455E5B?

Use white text. White on #455E5B has a contrast ratio of 6.99:1 (AA).

›What colours go with #455E5B?

Its complementary colour is #5E4548, and analogous partners are #455E4E and #45555E.