What color is #181B25?

#181B25 is a very dark, grayish blue, closest to the named color Eigengrau. It belongs to the black family of colors.

What is the RGB value of #181B25?

The RGB value is 24, 27, 37: 24 red, 27 green and 37 blue on a 0 to 255 scale.

What is the complementary color of #181B25?

The complementary color is #252218, found by rotating the hue 180° on the color wheel.

Is black or white text better on #181B25?

White text. Black text has a contrast ratio of 1.22:1 and white text 17.18:1. WCAG asks for at least 4.5:1 for normal text.

#181B25 color

#181B25 rgb(24, 27, 37)

Shades of black

The hex color #181B25 is a very dark, grayish blue.

In the RGB color model it is made of 9.4% red, 10.6% green and 14.5% blue (24, 27, 37).

Its hue angle is 226°, with 21% saturation and 12% lightness. For print, the CMYK equivalent is 35% cyan, 27% magenta, 0% yellow and 85% black.

The closest named color is Eigengrau (#16161D), a difference of 2.5 ΔE, a small difference.

White text is the more readable choice on this background (contrast 17.18:1).

#181B25 color codes

HEX	`#181B25`
RGB	`rgb(24, 27, 37)`
RGB percent	`rgb(9.4%, 10.6%, 14.5%)`
HSL	`hsl(226, 21%, 12%)`
HSV / HSB	`hsv(226, 35%, 15%)`
CMYK	`cmyk(35%, 27%, 0%, 85%)`
CIE LAB	`lab(9.89, 1.59, -7.3)`
CIE LCH	`lch(9.89, 7.47, 282.32)`
CIE XYZ	`xyz(1.102, 1.112, 1.906)`
Decimal	`1579813`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #181B25, 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 #181B25	Ratio	AA	AAA	AA large
Sample text	1.22:1	Fail	Fail	Fail
Sample text	17.18:1	Pass	Pass	Pass

#181B25 as text on	Ratio	AA	AAA	AA large
Sample text	17.18:1	Pass	Pass	Pass
Sample text	1.22:1	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 #181B25 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #181b25; }
.text { color: #181b25; }
.border { border: 2px solid #181b25; }
.transparent { background-color: rgb(24 27 37 / 50%); }
.gradient { background: linear-gradient(to right, #181b25, #1c1825); }

Background

Text color

Border

Similar colors

Closest common color name: Midnight Black.

Questions

What color is #181B25?: #181B25 is a very dark, grayish blue, closest to the named color Eigengrau. It belongs to the black family of colors.
What is the RGB value of #181B25?: The RGB value is 24, 27, 37: 24 red, 27 green and 37 blue on a 0 to 255 scale.
What is the complementary color of #181B25?: The complementary color is #252218, found by rotating the hue 180° on the color wheel.
Is black or white text better on #181B25?: White text. Black text has a contrast ratio of 1.22:1 and white text 17.18:1. WCAG asks for at least 4.5:1 for normal text.