What color is #373939?

#373939 is a dark gray, closest to the named color Wet Concrete. It belongs to the gray family of colors.

What is the RGB value of #373939?

The RGB value is 55, 57, 57: 55 red, 57 green and 57 blue on a 0 to 255 scale.

What is the complementary color of #373939?

The complementary color is #393737, found by rotating the hue 180° on the color wheel.

Is black or white text better on #373939?

White text. Black text has a contrast ratio of 1.81:1 and white text 11.62:1. WCAG asks for at least 4.5:1 for normal text.

#373939 color

#373939 rgb(55, 57, 57)

Shades of gray

The hex color #373939 is a dark gray.

In the RGB color model it is made of 21.6% red, 22.4% green and 22.4% blue (55, 57, 57).

Its hue angle is 180°, with 2% saturation and 22% lightness. For print, the CMYK equivalent is 4% cyan, 0% magenta, 0% yellow and 78% black.

The closest named color is Wet Concrete (#353838), a difference of 0.7 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 11.62:1).

#373939 color codes

HEX	`#373939`
RGB	`rgb(55, 57, 57)`
RGB percent	`rgb(21.6%, 22.4%, 22.4%)`
HSL	`hsl(180, 2%, 22%)`
HSV / HSB	`hsv(180, 4%, 22%)`
CMYK	`cmyk(4%, 0%, 0%, 78%)`
CIE LAB	`lab(23.78, -0.85, -0.3)`
CIE LCH	`lch(23.78, 0.9, 199.24)`
CIE XYZ	`xyz(3.777, 4.034, 4.45)`
Decimal	`3619129`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #373939, 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 #373939	Ratio	AA	AAA	AA large
Sample text	1.81:1	Fail	Fail	Fail
Sample text	11.62:1	Pass	Pass	Pass

#373939 as text on	Ratio	AA	AAA	AA large
Sample text	11.62:1	Pass	Pass	Pass
Sample text	1.81:1	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 #373939 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #373939; }
.text { color: #373939; }
.border { border: 2px solid #373939; }
.transparent { background-color: rgb(55 57 57 / 50%); }
.gradient { background: linear-gradient(to right, #373939, #373839); }

Background

Text color

Border

Similar colors

Questions

What color is #373939?: #373939 is a dark gray, closest to the named color Wet Concrete. It belongs to the gray family of colors.
What is the RGB value of #373939?: The RGB value is 55, 57, 57: 55 red, 57 green and 57 blue on a 0 to 255 scale.
What is the complementary color of #373939?: The complementary color is #393737, found by rotating the hue 180° on the color wheel.
Is black or white text better on #373939?: White text. Black text has a contrast ratio of 1.81:1 and white text 11.62:1. WCAG asks for at least 4.5:1 for normal text.