#171C19
Onyx · very dark neutral
About #171C19
#171C19 is a very dark, near-neutral gray colour. Digitally that works out to 9% red, 11% green and 10% blue. In CMYK print terms it is 18% cyan, 0% magenta, 11% yellow and 89% 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 5.7), with Jet the next nearest named colour. Across the colour wheel sits #1C171A (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 — 17.26:1, a WCAG AAA pass. Used as a text colour on white, it is readable too (17.26:1).
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Closest named colours
ΔE measures visible difference: under 2 is barely noticeable, over 10 is clearly different.
Text on #171C19
WCAG contrast for white and black text on this colour.
Colour-blindness preview
How #171C19 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 #171C19?
#171C19 is a very dark, near-neutral gray colour. Digitally that works out to 9% red, 11% green and 10% blue. In CMYK print terms it is 18% cyan, 0% magenta, 11% yellow and 89% black. It is close to neutral, so it sits comfortably next to both warm and cool colours.
›What text colour should I use on #171C19?
Use white text. White on #171C19 has a contrast ratio of 17.26:1 (AAA).
›What colours go with #171C19?
Its complementary colour is #1C171A, and analogous partners are #181C17 and #171C1C.