ColorXprez

#423B4E

Charcoal · dark cool purple

About #423B4E

#423B4E is a muted, dark shade in the purple family. On screen it is built from 26% red, 23% green and 31% blue; for print, its CMYK mix is 15% cyan, 24% magenta, 0% yellow and 69% black. Its overall feel is cool.

Of the common colour names it is similar to Charcoal (ΔE 11.2); Eggplant comes next. Its complementary colour, directly opposite on the colour wheel, is #474E3B — a umber tone that gives the strongest contrast in hue.

Designers tend to use dark tones like #423B4E for headings, body text, footers and dark-mode backgrounds. White text reads best on it at 10.67:1 (a WCAG AAA pass). Used as a text colour on white, it is readable too (10.67:1).

Colour codes

HEX
RGB
HSL
HSV / HSB
CMYK
CIELAB
Decimal
CSS
Red66
Green59
Blue78

Closest named colours

Charcoal
#36454F · ΔE 11.2
Eggplant
#614051 · ΔE 12.6
Gunmetal
#2A3439 · ΔE 13.0

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

Text on #423B4E

WCAG contrast for white and black text on this colour.

White heading text
Body copy set on charcoal #423B4E.
10.67:1AAA
Black heading text
Body copy set on charcoal #423B4E.
1.97:1Fail

Colour-blindness preview

How #423B4E appears to people with the three most common types of colour-vision deficiency.

Normal vision
#423B4E
Protanopia (no red cones)
#373E4F
Deuteranopia (no green cones)
#393E4D
Tritanopia (no blue cones)
#403E41

Shades, tints & matching colours

Tints and shades

Complementary

Analogous

Triadic

Split complementary

Tetradic

Similar colours

Frequently asked questions

›What colour is #423B4E?

#423B4E is a muted, dark shade in the purple family. On screen it is built from 26% red, 23% green and 31% blue; for print, its CMYK mix is 15% cyan, 24% magenta, 0% yellow and 69% black. Its overall feel is cool.

›What text colour should I use on #423B4E?

Use white text. White on #423B4E has a contrast ratio of 10.67:1 (AAA).

›What colours go with #423B4E?

Its complementary colour is #474E3B, and analogous partners are #3B3D4E and #4C3B4E.