ColorXprez

#201818

Onyx · very dark neutral

About #201818

#201818 is a near-neutral, very dark shade in the red family. On screen it is built from 13% red, 9% green and 9% blue; for print, its CMYK mix is 0% cyan, 25% magenta, 25% yellow and 87% black. Being nearly neutral, it pairs easily with warm and cool tones alike.

Of the common colour names it is very close to Onyx (ΔE 6.0); Jet comes next. Its complementary colour, directly opposite on the colour wheel, is #182020 — a jet tone that gives the strongest contrast in hue.

Designers tend to use very dark tones like #201818 for headings, body text, footers and dark-mode backgrounds. White text reads best on it at 17.42:1 (a WCAG AAA pass). Used as a text colour on white, it is readable too (17.42:1).

Colour codes

HEX
RGB
HSL
HSV / HSB
CMYK
CIELAB
Decimal
CSS
Red32
Green24
Blue24

Closest named colours

Onyx
#111111 · ΔE 6.0
Jet
#2B2B2B · ΔE 9.4
Black
#000000 · ΔE 10.2

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

Text on #201818

WCAG contrast for white and black text on this colour.

White heading text
Body copy set on onyx #201818.
17.42:1AAA
Black heading text
Body copy set on onyx #201818.
1.21:1Fail

Colour-blindness preview

How #201818 appears to people with the three most common types of colour-vision deficiency.

Normal vision
#201818
Protanopia (no red cones)
#191918
Deuteranopia (no green cones)
#1B1A18
Tritanopia (no blue cones)
#221718

Shades, tints & matching colours

Tints and shades

Complementary

Analogous

Triadic

Split complementary

Tetradic

Similar colours

Frequently asked questions

›What colour is #201818?

#201818 is a near-neutral, very dark shade in the red family. On screen it is built from 13% red, 9% green and 9% blue; for print, its CMYK mix is 0% cyan, 25% magenta, 25% yellow and 87% black. Being nearly neutral, it pairs easily with warm and cool tones alike.

›What text colour should I use on #201818?

Use white text. White on #201818 has a contrast ratio of 17.42:1 (AAA).

›What colours go with #201818?

Its complementary colour is #182020, and analogous partners are #20181C and #201C18.