#21212E
Jet · very dark cool blue
About #21212E
#21212E is a very dark, muted blue colour. Digitally that works out to 13% red, 13% green and 18% blue. In CMYK print terms it is 28% cyan, 28% magenta, 0% yellow and 82% black. Most people will perceive it as cool.
Visually it is similar to Jet (ΔE 10.3), with Gunmetal the next nearest named colour. Across the colour wheel sits #2E2E21 (jet), its complementary partner.
Because it is very dark, it is most useful for headings, body text, footers and dark-mode backgrounds. White text reads best on it at 15.89:1 (a WCAG AAA pass). Used as a text colour on white, it is readable too (15.89:1).
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Closest named colours
ΔE measures visible difference: under 2 is barely noticeable, over 10 is clearly different.
Text on #21212E
WCAG contrast for white and black text on this colour.
Colour-blindness preview
How #21212E 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 #21212E?
#21212E is a very dark, muted blue colour. Digitally that works out to 13% red, 13% green and 18% blue. In CMYK print terms it is 28% cyan, 28% magenta, 0% yellow and 82% black. Most people will perceive it as cool.
›What text colour should I use on #21212E?
Use white text. White on #21212E has a contrast ratio of 15.89:1 (AAA).
›What colours go with #21212E?
Its complementary colour is #2E2E21, and analogous partners are #21282E and #28212E.