What color is #121D3D?

#121D3D is a very dark, moderate blue, closest to the named color Nightwalker. It belongs to the black family of colors.

What is the RGB value of #121D3D?

The RGB value is 18, 29, 61: 18 red, 29 green and 61 blue on a 0 to 255 scale.

What is the complementary color of #121D3D?

The complementary color is #3D3212, found by rotating the hue 180° on the color wheel.

Is black or white text better on #121D3D?

White text. Black text has a contrast ratio of 1.27:1 and white text 16.55:1. WCAG asks for at least 4.5:1 for normal text.

#121D3D color

#121D3D rgb(18, 29, 61)

Shades of black

The hex color #121D3D is a very dark, moderate blue.

In the RGB color model it is made of 7.1% red, 11.4% green and 23.9% blue (18, 29, 61).

Its hue angle is 225°, with 54% saturation and 15% lightness. For print, the CMYK equivalent is 70% cyan, 52% magenta, 0% yellow and 76% black.

The closest named color is Nightwalker (#161D3B), a difference of 1.2 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 16.55:1).

#121D3D color codes

HEX	`#121D3D`
RGB	`rgb(18, 29, 61)`
RGB percent	`rgb(7.1%, 11.4%, 23.9%)`
HSL	`hsl(225, 54%, 15%)`
HSV / HSB	`hsv(225, 70%, 24%)`
CMYK	`cmyk(70%, 52%, 0%, 76%)`
CIE LAB	`lab(11.58, 7.39, -22.07)`
CIE LCH	`lch(11.58, 23.27, 288.51)`
CIE XYZ	`xyz(1.531, 1.344, 4.593)`
Decimal	`1187133`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #121D3D, 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 #121D3D	Ratio	AA	AAA	AA large
Sample text	1.27:1	Fail	Fail	Fail
Sample text	16.55:1	Pass	Pass	Pass

#121D3D as text on	Ratio	AA	AAA	AA large
Sample text	16.55:1	Pass	Pass	Pass
Sample text	1.27:1	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 #121D3D looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #121d3d; }
.text { color: #121d3d; }
.border { border: 2px solid #121d3d; }
.transparent { background-color: rgb(18 29 61 / 50%); }
.gradient { background: linear-gradient(to right, #121d3d, #1c123d); }

Background

Text color

Border

Similar colors

Questions

What color is #121D3D?: #121D3D is a very dark, moderate blue, closest to the named color Nightwalker. It belongs to the black family of colors.
What is the RGB value of #121D3D?: The RGB value is 18, 29, 61: 18 red, 29 green and 61 blue on a 0 to 255 scale.
What is the complementary color of #121D3D?: The complementary color is #3D3212, found by rotating the hue 180° on the color wheel.
Is black or white text better on #121D3D?: White text. Black text has a contrast ratio of 1.27:1 and white text 16.55:1. WCAG asks for at least 4.5:1 for normal text.