ColorXprez

#1C1924

Onyx · very dark cool purple

About #1C1924

#1C1924 is a muted, very dark shade in the purple family. On screen it is built from 11% red, 10% green and 14% blue; for print, its CMYK mix is 22% cyan, 31% magenta, 0% yellow and 86% black. Its overall feel is cool.

Of the common colour names it is similar to Onyx (ΔE 9.5); Jet comes next. Its complementary colour, directly opposite on the colour wheel, is #212419 — a jet tone that gives the strongest contrast in hue.

Designers tend to use very dark tones like #1C1924 for headings, body text, footers and dark-mode backgrounds. White text reads best on it at 17.30:1 (a WCAG AAA pass). Used as a text colour on white, it is readable too (17.30:1).

Colour codes

HEX
RGB
HSL
HSV / HSB
CMYK
CIELAB
Decimal
CSS
Red28
Green25
Blue36

Closest named colours

Onyx
#111111 · ΔE 9.5
Jet
#2B2B2B · ΔE 11.5
Black
#000000 · ΔE 12.7

ΔE measures visible difference: under 2 is barely noticeable, over 10 is clearly different.

Text on #1C1924

WCAG contrast for white and black text on this colour.

White heading text
Body copy set on onyx #1C1924.
17.30:1AAA
Black heading text
Body copy set on onyx #1C1924.
1.21:1Fail

Colour-blindness preview

How #1C1924 appears to people with the three most common types of colour-vision deficiency.

Normal vision
#1C1924
Protanopia (no red cones)
#171B24
Deuteranopia (no green cones)
#171A24
Tritanopia (no blue cones)
#1B1B1D

Shades, tints & matching colours

Tints and shades

Complementary

Analogous

Triadic

Split complementary

Tetradic

Similar colours

Frequently asked questions

›What colour is #1C1924?

#1C1924 is a muted, very dark shade in the purple family. On screen it is built from 11% red, 10% green and 14% blue; for print, its CMYK mix is 22% cyan, 31% magenta, 0% yellow and 86% black. Its overall feel is cool.

›What text colour should I use on #1C1924?

Use white text. White on #1C1924 has a contrast ratio of 17.30:1 (AAA).

›What colours go with #1C1924?

Its complementary colour is #212419, and analogous partners are #191B24 and #211924.