What color is #010D21?

#010D21 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 #010D21?

The RGB value is 1, 13, 33: 1 red, 13 green and 33 blue on a 0 to 255 scale.

What is the complementary color of #010D21?

The complementary color is #211501, found by rotating the hue 180° on the color wheel.

Is black or white text better on #010D21?

White text. Black text has a contrast ratio of 1.08:1 and white text 19.43:1. WCAG asks for at least 4.5:1 for normal text.

#010D21 color

#010D21 rgb(1, 13, 33)

Shades of black

The hex color #010D21 is a very dark, vivid azure.

In the RGB color model it is made of 0.4% red, 5.1% green and 12.9% blue (1, 13, 33).

Its hue angle is 218°, with 94% saturation and 7% lightness. For print, the CMYK equivalent is 97% cyan, 61% magenta, 0% yellow and 87% black.

The closest named color is Void (#050D25), a difference of 3 ΔE, a small difference.

White text is the more readable choice on this background (contrast 19.43:1).

#010D21 color codes

HEX	`#010D21`
RGB	`rgb(1, 13, 33)`
RGB percent	`rgb(0.4%, 5.1%, 12.9%)`
HSL	`hsl(218, 94%, 7%)`
HSV / HSB	`hsv(218, 97%, 13%)`
CMYK	`cmyk(97%, 61%, 0%, 87%)`
CIE LAB	`lab(3.65, 1.92, -14)`
CIE LCH	`lch(3.65, 14.13, 277.8)`
CIE XYZ	`xyz(0.431, 0.404, 1.494)`
Decimal	`68897`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #010D21, 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 #010D21	Ratio	AA	AAA	AA large
Sample text	1.08:1	Fail	Fail	Fail
Sample text	19.43:1	Pass	Pass	Pass

#010D21 as text on	Ratio	AA	AAA	AA large
Sample text	19.43:1	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 #010D21 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #010d21; }
.text { color: #010d21; }
.border { border: 2px solid #010d21; }
.transparent { background-color: rgb(1 13 33 / 50%); }
.gradient { background: linear-gradient(to right, #010d21, #050121); }

Background

Text color

Border

Similar colors

Closest common color name: Rich Black.

Questions

What color is #010D21?: #010D21 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 #010D21?: The RGB value is 1, 13, 33: 1 red, 13 green and 33 blue on a 0 to 255 scale.
What is the complementary color of #010D21?: The complementary color is #211501, found by rotating the hue 180° on the color wheel.
Is black or white text better on #010D21?: White text. Black text has a contrast ratio of 1.08:1 and white text 19.43:1. WCAG asks for at least 4.5:1 for normal text.