#182018
Onyx · very dark neutral
About #182018
#182018 is a near-neutral, very dark shade in the green family. On screen it is built from 9% red, 13% green and 9% blue; for print, its CMYK mix is 25% cyan, 0% 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 similar to Onyx (ΔE 9.4); Jet comes next. Its complementary colour, directly opposite on the colour wheel, is #201820 — a onyx tone that gives the strongest contrast in hue.
Designers tend to use very dark tones like #182018 for headings, body text, footers and dark-mode backgrounds. White text reads best on it at 16.68:1 (a WCAG AAA pass). Used as a text colour on white, it is readable too (16.68:1).
Colour codes
| HEX | |
|---|---|
| RGB | |
| HSL | |
| HSV / HSB | |
| CMYK | |
| CIELAB | |
| Decimal | |
| CSS |
Closest named colours
ΔE measures visible difference: under 2 is barely noticeable, over 10 is clearly different.
Text on #182018
WCAG contrast for white and black text on this colour.
Colour-blindness preview
How #182018 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 #182018?
#182018 is a near-neutral, very dark shade in the green family. On screen it is built from 9% red, 13% green and 9% blue; for print, its CMYK mix is 25% cyan, 0% 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 #182018?
Use white text. White on #182018 has a contrast ratio of 16.68:1 (AAA).
›What colours go with #182018?
Its complementary colour is #201820, and analogous partners are #1C2018 and #18201C.