What color is #21000B?

#21000B is a very dark, vivid rose, closest to the named color Belladonna. It belongs to the black family of colors.

What is the RGB value of #21000B?

The RGB value is 33, 0, 11: 33 red, 0 green and 11 blue on a 0 to 255 scale.

What is the complementary color of #21000B?

The complementary color is #002116, found by rotating the hue 180° on the color wheel.

Is black or white text better on #21000B?

White text. Black text has a contrast ratio of 1.07:1 and white text 19.64:1. WCAG asks for at least 4.5:1 for normal text.

#21000B color

#21000B rgb(33, 0, 11)

Shades of black

The hex color #21000B is a very dark, vivid rose.

In the RGB color model it is made of 12.9% red, 0% green and 4.3% blue (33, 0, 11).

Its hue angle is 340°, with 100% saturation and 6% lightness. For print, the CMYK equivalent is 0% cyan, 100% magenta, 67% yellow and 87% black.

The closest named color is Belladonna (#220011), a difference of 2.1 ΔE, a small difference.

White text is the more readable choice on this background (contrast 19.64:1).

#21000B color codes

HEX	`#21000B`
RGB	`rgb(33, 0, 11)`
RGB percent	`rgb(12.9%, 0%, 4.3%)`
HSL	`hsl(340, 100%, 6%)`
HSV / HSB	`hsv(340, 100%, 13%)`
CMYK	`cmyk(0%, 100%, 67%, 87%)`
CIE LAB	`lab(3.14, 14.64, 0.44)`
CIE LCH	`lch(3.14, 14.64, 1.74)`
CIE XYZ	`xyz(0.688, 0.348, 0.347)`
Decimal	`2162699`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #21000B, 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 #21000B	Ratio	AA	AAA	AA large
Sample text	1.07:1	Fail	Fail	Fail
Sample text	19.64:1	Pass	Pass	Pass

#21000B as text on	Ratio	AA	AAA	AA large
Sample text	19.64:1	Pass	Pass	Pass
Sample text	1.07:1	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 #21000B looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #21000b; }
.text { color: #21000b; }
.border { border: 2px solid #21000b; }
.transparent { background-color: rgb(33 0 11 / 50%); }
.gradient { background: linear-gradient(to right, #21000b, #210500); }

Background

Text color

Border

Similar colors

Closest common color name: Licorice.

Questions

What color is #21000B?: #21000B is a very dark, vivid rose, closest to the named color Belladonna. It belongs to the black family of colors.
What is the RGB value of #21000B?: The RGB value is 33, 0, 11: 33 red, 0 green and 11 blue on a 0 to 255 scale.
What is the complementary color of #21000B?: The complementary color is #002116, found by rotating the hue 180° on the color wheel.
Is black or white text better on #21000B?: White text. Black text has a contrast ratio of 1.07:1 and white text 19.64:1. WCAG asks for at least 4.5:1 for normal text.