What color is #121831?

#121831 is a very dark, desaturated blue, closest to the named color Dark Knight. It belongs to the black family of colors.

What is the RGB value of #121831?

The RGB value is 18, 24, 49: 18 red, 24 green and 49 blue on a 0 to 255 scale.

What is the complementary color of #121831?

The complementary color is #312B12, found by rotating the hue 180° on the color wheel.

Is black or white text better on #121831?

White text. Black text has a contrast ratio of 1.2:1 and white text 17.49:1. WCAG asks for at least 4.5:1 for normal text.

#121831 color

#121831 rgb(18, 24, 49)

Shades of black

The hex color #121831 is a very dark, desaturated blue.

In the RGB color model it is made of 7.1% red, 9.4% green and 19.2% blue (18, 24, 49).

Its hue angle is 228°, with 46% saturation and 13% lightness. For print, the CMYK equivalent is 63% cyan, 51% magenta, 0% yellow and 81% black.

The closest named color is Dark Knight (#151931), a difference of 0.8 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 17.49:1).

#121831 color codes

HEX	`#121831`
RGB	`rgb(18, 24, 49)`
RGB percent	`rgb(7.1%, 9.4%, 19.2%)`
HSL	`hsl(228, 46%, 13%)`
HSV / HSB	`hsv(228, 63%, 19%)`
CMYK	`cmyk(63%, 51%, 0%, 81%)`
CIE LAB	`lab(9.02, 6.28, -17.53)`
CIE LCH	`lch(9.02, 18.62, 289.7)`
CIE XYZ	`xyz(1.13, 1.004, 3.039)`
Decimal	`1185841`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #121831, 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 #121831	Ratio	AA	AAA	AA large
Sample text	1.2:1	Fail	Fail	Fail
Sample text	17.49:1	Pass	Pass	Pass

#121831 as text on	Ratio	AA	AAA	AA large
Sample text	17.49:1	Pass	Pass	Pass
Sample text	1.2:1	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 #121831 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #121831; }
.text { color: #121831; }
.border { border: 2px solid #121831; }
.transparent { background-color: rgb(18 24 49 / 50%); }
.gradient { background: linear-gradient(to right, #121831, #1c1231); }

Background

Text color

Border

Similar colors

Closest common color name: Oxford Blue.

Questions

What color is #121831?: #121831 is a very dark, desaturated blue, closest to the named color Dark Knight. It belongs to the black family of colors.
What is the RGB value of #121831?: The RGB value is 18, 24, 49: 18 red, 24 green and 49 blue on a 0 to 255 scale.
What is the complementary color of #121831?: The complementary color is #312B12, found by rotating the hue 180° on the color wheel.
Is black or white text better on #121831?: White text. Black text has a contrast ratio of 1.2:1 and white text 17.49:1. WCAG asks for at least 4.5:1 for normal text.