What color is #101F21?

#101F21 is a very dark, desaturated cyan, closest to the named color Sunken Ship. It belongs to the black family of colors.

What is the RGB value of #101F21?

The RGB value is 16, 31, 33: 16 red, 31 green and 33 blue on a 0 to 255 scale.

What is the complementary color of #101F21?

The complementary color is #211210, found by rotating the hue 180° on the color wheel.

Is black or white text better on #101F21?

White text. Black text has a contrast ratio of 1.24:1 and white text 16.94:1. WCAG asks for at least 4.5:1 for normal text.

#101F21 color

#101F21 rgb(16, 31, 33)

Shades of black

The hex color #101F21 is a very dark, desaturated cyan.

In the RGB color model it is made of 6.3% red, 12.2% green and 12.9% blue (16, 31, 33).

Its hue angle is 187°, with 35% saturation and 10% lightness. For print, the CMYK equivalent is 52% cyan, 6% magenta, 0% yellow and 87% black.

The closest named color is Sunken Ship (#10252A), a difference of 2.7 ΔE, a small difference.

White text is the more readable choice on this background (contrast 16.94:1).

#101F21 color codes

HEX	`#101F21`
RGB	`rgb(16, 31, 33)`
RGB percent	`rgb(6.3%, 12.2%, 12.9%)`
HSL	`hsl(187, 35%, 10%)`
HSV / HSB	`hsv(187, 52%, 13%)`
CMYK	`cmyk(52%, 6%, 0%, 87%)`
CIE LAB	`lab(10.56, -5.71, -3.39)`
CIE LCH	`lch(10.56, 6.64, 210.68)`
CIE XYZ	`xyz(0.978, 1.2, 1.619)`
Decimal	`1056545`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #101F21, 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 #101F21	Ratio	AA	AAA	AA large
Sample text	1.24:1	Fail	Fail	Fail
Sample text	16.94:1	Pass	Pass	Pass

#101F21 as text on	Ratio	AA	AAA	AA large
Sample text	16.94:1	Pass	Pass	Pass
Sample text	1.24:1	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 #101F21 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #101f21; }
.text { color: #101f21; }
.border { border: 2px solid #101f21; }
.transparent { background-color: rgb(16 31 33 / 50%); }
.gradient { background: linear-gradient(to right, #101f21, #101721); }

Background

Text color

Border

Similar colors

Closest common color name: Rich Black.

Questions

What color is #101F21?: #101F21 is a very dark, desaturated cyan, closest to the named color Sunken Ship. It belongs to the black family of colors.
What is the RGB value of #101F21?: The RGB value is 16, 31, 33: 16 red, 31 green and 33 blue on a 0 to 255 scale.
What is the complementary color of #101F21?: The complementary color is #211210, found by rotating the hue 180° on the color wheel.
Is black or white text better on #101F21?: White text. Black text has a contrast ratio of 1.24:1 and white text 16.94:1. WCAG asks for at least 4.5:1 for normal text.