What color is #181E2B?

#181E2B is a very dark, desaturated blue, closest to the named color Moonless Mystery. It belongs to the black family of colors.

What is the RGB value of #181E2B?

The RGB value is 24, 30, 43: 24 red, 30 green and 43 blue on a 0 to 255 scale.

What is the complementary color of #181E2B?

The complementary color is #2B2518, found by rotating the hue 180° on the color wheel.

Is black or white text better on #181E2B?

White text. Black text has a contrast ratio of 1.26:1 and white text 16.67:1. WCAG asks for at least 4.5:1 for normal text.

#181E2B color

#181E2B rgb(24, 30, 43)

Shades of black

The hex color #181E2B is a very dark, desaturated blue.

In the RGB color model it is made of 9.4% red, 11.8% green and 16.9% blue (24, 30, 43).

Its hue angle is 221°, with 28% saturation and 13% lightness. For print, the CMYK equivalent is 44% cyan, 30% magenta, 0% yellow and 83% black.

The closest named color is Moonless Mystery (#1E2433), a difference of 2.2 ΔE, a small difference.

White text is the more readable choice on this background (contrast 16.67:1).

#181E2B color codes

HEX	`#181E2B`
RGB	`rgb(24, 30, 43)`
RGB percent	`rgb(9.4%, 11.8%, 16.9%)`
HSL	`hsl(221, 28%, 13%)`
HSV / HSB	`hsv(221, 44%, 17%)`
CMYK	`cmyk(44%, 30%, 0%, 83%)`
CIE LAB	`lab(11.26, 1.38, -9.61)`
CIE LCH	`lch(11.26, 9.71, 278.18)`
CIE XYZ	`xyz(1.277, 1.297, 2.468)`
Decimal	`1580587`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #181E2B, 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 #181E2B	Ratio	AA	AAA	AA large
Sample text	1.26:1	Fail	Fail	Fail
Sample text	16.67:1	Pass	Pass	Pass

#181E2B as text on	Ratio	AA	AAA	AA large
Sample text	16.67:1	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 #181E2B looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #181e2b; }
.text { color: #181e2b; }
.border { border: 2px solid #181e2b; }
.transparent { background-color: rgb(24 30 43 / 50%); }
.gradient { background: linear-gradient(to right, #181e2b, #1c182b); }

Background

Text color

Border

Similar colors

Closest common color name: Rich Black.

Questions

What color is #181E2B?: #181E2B is a very dark, desaturated blue, closest to the named color Moonless Mystery. It belongs to the black family of colors.
What is the RGB value of #181E2B?: The RGB value is 24, 30, 43: 24 red, 30 green and 43 blue on a 0 to 255 scale.
What is the complementary color of #181E2B?: The complementary color is #2B2518, found by rotating the hue 180° on the color wheel.
Is black or white text better on #181E2B?: White text. Black text has a contrast ratio of 1.26:1 and white text 16.67:1. WCAG asks for at least 4.5:1 for normal text.