What color is #000D21?

#000D21 is a very dark, vivid azure, closest to the named color Void. It belongs to the black family of colors.

What is the RGB value of #000D21?

The RGB value is 0, 13, 33: 0 red, 13 green and 33 blue on a 0 to 255 scale.

What is the complementary color of #000D21?

The complementary color is #211400, found by rotating the hue 180° on the color wheel.

Is black or white text better on #000D21?

White text. Black text has a contrast ratio of 1.08:1 and white text 19.45:1. WCAG asks for at least 4.5:1 for normal text.

#000D21 color

#000D21 rgb(0, 13, 33)

Shades of black

The hex color #000D21 is a very dark, vivid azure.

In the RGB color model it is made of 0% red, 5.1% green and 12.9% blue (0, 13, 33).

Its hue angle is 216°, with 100% saturation and 6% lightness. For print, the CMYK equivalent is 100% cyan, 61% magenta, 0% yellow and 87% black.

The closest named color is Void (#050D25), a difference of 3.3 ΔE, a small difference.

White text is the more readable choice on this background (contrast 19.45:1).

#000D21 color codes

HEX	`#000D21`
RGB	`rgb(0, 13, 33)`
RGB percent	`rgb(0%, 5.1%, 12.9%)`
HSL	`hsl(216, 100%, 6%)`
HSV / HSB	`hsv(216, 100%, 13%)`
CMYK	`cmyk(100%, 61%, 0%, 87%)`
CIE LAB	`lab(3.59, 1.66, -14.09)`
CIE LCH	`lch(3.59, 14.19, 276.7)`
CIE XYZ	`xyz(0.418, 0.398, 1.493)`
Decimal	`3361`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #000D21, 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 #000D21	Ratio	AA	AAA	AA large
Sample text	1.08:1	Fail	Fail	Fail
Sample text	19.45:1	Pass	Pass	Pass

#000D21 as text on	Ratio	AA	AAA	AA large
Sample text	19.45:1	Pass	Pass	Pass
Sample text	1.08:1	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 #000D21 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #000d21; }
.text { color: #000d21; }
.border { border: 2px solid #000d21; }
.transparent { background-color: rgb(0 13 33 / 50%); }
.gradient { background: linear-gradient(to right, #000d21, #040021); }

Background

Text color

Border

Similar colors

Closest common color name: Rich Black.

Questions

What color is #000D21?: #000D21 is a very dark, vivid azure, closest to the named color Void. It belongs to the black family of colors.
What is the RGB value of #000D21?: The RGB value is 0, 13, 33: 0 red, 13 green and 33 blue on a 0 to 255 scale.
What is the complementary color of #000D21?: The complementary color is #211400, found by rotating the hue 180° on the color wheel.
Is black or white text better on #000D21?: White text. Black text has a contrast ratio of 1.08:1 and white text 19.45:1. WCAG asks for at least 4.5:1 for normal text.