What color is #37333B?

#37333B is a dark gray, closest to the named color Professor Plum. It belongs to the gray family of colors.

What is the RGB value of #37333B?

The RGB value is 55, 51, 59: 55 red, 51 green and 59 blue on a 0 to 255 scale.

What is the complementary color of #37333B?

The complementary color is #373B33, found by rotating the hue 180° on the color wheel.

Is black or white text better on #37333B?

White text. Black text has a contrast ratio of 1.7:1 and white text 12.36:1. WCAG asks for at least 4.5:1 for normal text.

#37333B color

#37333B rgb(55, 51, 59)

Shades of gray

The hex color #37333B is a dark gray.

In the RGB color model it is made of 21.6% red, 20% green and 23.1% blue (55, 51, 59).

Its hue angle is 270°, with 7% saturation and 22% lightness. For print, the CMYK equivalent is 7% cyan, 14% magenta, 0% yellow and 77% black.

The closest named color is Professor Plum (#393540), a difference of 1.8 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 12.36:1).

#37333B color codes

HEX	`#37333B`
RGB	`rgb(55, 51, 59)`
RGB percent	`rgb(21.6%, 20%, 23.1%)`
HSL	`hsl(270, 7%, 22%)`
HSV / HSB	`hsv(270, 14%, 23%)`
CMYK	`cmyk(7%, 14%, 0%, 77%)`
CIE LAB	`lab(21.93, 3.63, -4.39)`
CIE LCH	`lch(21.93, 5.69, 309.59)`
CIE XYZ	`xyz(3.549, 3.496, 4.625)`
Decimal	`3617595`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #37333B, 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 #37333B	Ratio	AA	AAA	AA large
Sample text	1.7:1	Fail	Fail	Fail
Sample text	12.36:1	Pass	Pass	Pass

#37333B as text on	Ratio	AA	AAA	AA large
Sample text	12.36:1	Pass	Pass	Pass
Sample text	1.7:1	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 #37333B looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #37333b; }
.text { color: #37333b; }
.border { border: 2px solid #37333b; }
.transparent { background-color: rgb(55 51 59 / 50%); }
.gradient { background: linear-gradient(to right, #37333b, #3b333b); }

Background

Text color

Border

Similar colors

Closest common color name: Jet Black.

Questions

What color is #37333B?: #37333B is a dark gray, closest to the named color Professor Plum. It belongs to the gray family of colors.
What is the RGB value of #37333B?: The RGB value is 55, 51, 59: 55 red, 51 green and 59 blue on a 0 to 255 scale.
What is the complementary color of #37333B?: The complementary color is #373B33, found by rotating the hue 180° on the color wheel.
Is black or white text better on #37333B?: White text. Black text has a contrast ratio of 1.7:1 and white text 12.36:1. WCAG asks for at least 4.5:1 for normal text.