#182011
Onyx · very dark cool black
About #182011
#182011 is a very dark, muted black colour. Digitally that works out to 9% red, 13% green and 7% blue. In CMYK print terms it is 25% cyan, 0% magenta, 47% yellow and 87% black. Most people will perceive it as cool.
Visually it is similar to Onyx (ΔE 12.8), with Jet the next nearest named colour. Across the colour wheel sits #191120 (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 — 16.75:1, a WCAG AAA pass. Used as a text colour on white, it is readable too (16.75:1).
Colour codes
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Closest named colours
ΔE measures visible difference: under 2 is barely noticeable, over 10 is clearly different.
Text on #182011
WCAG contrast for white and black text on this colour.
Colour-blindness preview
How #182011 appears to people with the three most common types of colour-vision deficiency.
Shades, tints & matching colours
Similar colours
Frequently asked questions
›What colour is #182011?
#182011 is a very dark, muted black colour. Digitally that works out to 9% red, 13% green and 7% blue. In CMYK print terms it is 25% cyan, 0% magenta, 47% yellow and 87% black. Most people will perceive it as cool.
›What text colour should I use on #182011?
Use white text. White on #182011 has a contrast ratio of 16.75:1 (AAA).
›What colours go with #182011?
Its complementary colour is #191120, and analogous partners are #1F2011 and #112011.