#100E17
Onyx · very dark neutral
About #100E17
#100E17 is a near-neutral, very dark shade in the black family. On screen it is built from 6% red, 5% green and 9% blue; for print, its CMYK mix is 30% cyan, 39% magenta, 0% yellow and 91% black. It is close to neutral, so it sits comfortably next to both warm and cool colours.
Of the common colour names it is very close to Onyx (ΔE 5.6); Black comes next. Its complementary colour, directly opposite on the colour wheel, is #15170E — a onyx tone that gives the strongest contrast in hue.
Designers tend to use very dark tones like #100E17 for headings, body text, footers and dark-mode backgrounds. Put white text on top of it — 19.14:1, a WCAG AAA pass. Used as a text colour on white, it is readable too (19.14:1).
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Closest named colours
ΔE measures visible difference: under 2 is barely noticeable, over 10 is clearly different.
Text on #100E17
WCAG contrast for white and black text on this colour.
Colour-blindness preview
How #100E17 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 #100E17?
#100E17 is a near-neutral, very dark shade in the black family. On screen it is built from 6% red, 5% green and 9% blue; for print, its CMYK mix is 30% cyan, 39% magenta, 0% yellow and 91% black. It is close to neutral, so it sits comfortably next to both warm and cool colours.
›What text colour should I use on #100E17?
Use white text. White on #100E17 has a contrast ratio of 19.14:1 (AAA).
›What colours go with #100E17?
Its complementary colour is #15170E, and analogous partners are #0E1017 and #150E17.