ColorXprez

#201811

Onyx · very dark neutral

About #201811

#201811 is a very dark, near-neutral black colour. Digitally that works out to 13% red, 9% green and 7% blue. In CMYK print terms it is 0% cyan, 25% magenta, 47% yellow and 87% black. It is close to neutral, so it sits comfortably next to both warm and cool colours.

Visually it is very close to Onyx (ΔE 7.6), with Jet the next nearest named colour. Across the colour wheel sits #111920 (onyx), its complementary partner.

Because it is very dark, it is most useful for headings, body text, footers and dark-mode backgrounds. Put white text on top of it — 17.50:1, a WCAG AAA pass. Used as a text colour on white, it is readable too (17.50:1).

Colour codes

HEX
RGB
HSL
HSV / HSB
CMYK
CIELAB
Decimal
CSS
Red32
Green24
Blue17

Closest named colours

Onyx
#111111 · ΔE 7.6
Jet
#2B2B2B · ΔE 10.7
Espresso
#3B2A20 · ΔE 11.0

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

Text on #201811

WCAG contrast for white and black text on this colour.

White heading text
Body copy set on onyx #201811.
17.50:1AAA
Black heading text
Body copy set on onyx #201811.
1.20:1Fail

Colour-blindness preview

How #201811 appears to people with the three most common types of colour-vision deficiency.

Normal vision
#201811
Protanopia (no red cones)
#1B1811
Deuteranopia (no green cones)
#1C1A11
Tritanopia (no blue cones)
#231616

Shades, tints & matching colours

Tints and shades

Complementary

Analogous

Triadic

Split complementary

Tetradic

Similar colours

Frequently asked questions

›What colour is #201811?

#201811 is a very dark, near-neutral black colour. Digitally that works out to 13% red, 9% green and 7% blue. In CMYK print terms it is 0% cyan, 25% magenta, 47% yellow and 87% black. It is close to neutral, so it sits comfortably next to both warm and cool colours.

›What text colour should I use on #201811?

Use white text. White on #201811 has a contrast ratio of 17.50:1 (AAA).

›What colours go with #201811?

Its complementary colour is #111920, and analogous partners are #201111 and #202011.