What color is #181F21?

#181F21 is a very dark, grayish cyan, closest to the named color Black Stallion. It belongs to the black family of colors.

What is the RGB value of #181F21?

The RGB value is 24, 31, 33: 24 red, 31 green and 33 blue on a 0 to 255 scale.

What is the complementary color of #181F21?

The complementary color is #211A18, found by rotating the hue 180° on the color wheel.

Is black or white text better on #181F21?

White text. Black text has a contrast ratio of 1.26:1 and white text 16.71:1. WCAG asks for at least 4.5:1 for normal text.

#181F21 color

#181F21 rgb(24, 31, 33)

Shades of black

The hex color #181F21 is a very dark, grayish cyan.

In the RGB color model it is made of 9.4% red, 12.2% green and 12.9% blue (24, 31, 33).

Its hue angle is 193°, with 16% saturation and 11% lightness. For print, the CMYK equivalent is 27% cyan, 6% magenta, 0% yellow and 87% black.

The closest named color is Black Stallion (#0E191C), a difference of 2.7 ΔE, a small difference.

White text is the more readable choice on this background (contrast 16.71:1).

#181F21 color codes

HEX	`#181F21`
RGB	`rgb(24, 31, 33)`
RGB percent	`rgb(9.4%, 12.2%, 12.9%)`
HSL	`hsl(193, 16%, 11%)`
HSV / HSB	`hsv(193, 27%, 13%)`
CMYK	`cmyk(27%, 6%, 0%, 87%)`
CIE LAB	`lab(11.16, -2.59, -2.42)`
CIE LCH	`lch(11.16, 3.55, 223.07)`
CIE XYZ	`xyz(1.141, 1.284, 1.626)`
Decimal	`1580833`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #181F21, based on their position on the color wheel.

Complementary

The color opposite on the color wheel (180°). Strongest contrast.

Analogous

Neighbors 30° either side. Calm, natural combinations.

Split complementary

The two colors next to the complement (150° and 210°).

Triadic

Three colors evenly spaced, 120° apart.

Tetradic (square)

Four colors 90° apart.

Shades, tints and tones

Shades (darker, mixed with black)

Tints (lighter, mixed with white)

Tones (mixed with gray)

Contrast and accessibility

Text on #181F21	Ratio	AA	AAA	AA large
Sample text	1.26:1	Fail	Fail	Fail
Sample text	16.71:1	Pass	Pass	Pass

#181F21 as text on	Ratio	AA	AAA	AA large
Sample text	16.71:1	Pass	Pass	Pass
Sample text	1.26:1	Fail	Fail	Fail

WCAG 2 asks for 4.5:1 for normal text (AA), 7:1 for AAA, and 3:1 for large text. Check other pairs.

Color blindness simulation

How #181F21 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #181f21; }
.text { color: #181f21; }
.border { border: 2px solid #181f21; }
.transparent { background-color: rgb(24 31 33 / 50%); }
.gradient { background: linear-gradient(to right, #181f21, #181a21); }

Background

Text color

Border

Similar colors

Closest common color name: Off Black.

Questions

What color is #181F21?: #181F21 is a very dark, grayish cyan, closest to the named color Black Stallion. It belongs to the black family of colors.
What is the RGB value of #181F21?: The RGB value is 24, 31, 33: 24 red, 31 green and 33 blue on a 0 to 255 scale.
What is the complementary color of #181F21?: The complementary color is #211A18, found by rotating the hue 180° on the color wheel.
Is black or white text better on #181F21?: White text. Black text has a contrast ratio of 1.26:1 and white text 16.71:1. WCAG asks for at least 4.5:1 for normal text.