What color is #373B40?

#373B40 is a dark gray, closest to the named color Artist’s Charcoal. It belongs to the gray family of colors.

What is the RGB value of #373B40?

The RGB value is 55, 59, 64: 55 red, 59 green and 64 blue on a 0 to 255 scale.

What is the complementary color of #373B40?

The complementary color is #403C37, found by rotating the hue 180° on the color wheel.

Is black or white text better on #373B40?

White text. Black text has a contrast ratio of 1.86:1 and white text 11.28:1. WCAG asks for at least 4.5:1 for normal text.

#373B40 color

#373B40 rgb(55, 59, 64)

Shades of gray

The hex color #373B40 is a dark gray.

In the RGB color model it is made of 21.6% red, 23.1% green and 25.1% blue (55, 59, 64).

Its hue angle is 213°, with 8% saturation and 23% lightness. For print, the CMYK equivalent is 14% cyan, 8% magenta, 0% yellow and 75% black.

The closest named color is Artist’s Charcoal (#37393E), a difference of 1.3 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 11.28:1).

#373B40 color codes

HEX	`#373B40`
RGB	`rgb(55, 59, 64)`
RGB percent	`rgb(21.6%, 23.1%, 25.1%)`
HSL	`hsl(213, 8%, 23%)`
HSV / HSB	`hsv(213, 14%, 25%)`
CMYK	`cmyk(14%, 8%, 0%, 75%)`
CIE LAB	`lab(24.67, -0.46, -3.66)`
CIE LCH	`lch(24.67, 3.69, 262.86)`
CIE XYZ	`xyz(4.065, 4.31, 5.467)`
Decimal	`3619648`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #373B40, 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 #373B40	Ratio	AA	AAA	AA large
Sample text	1.86:1	Fail	Fail	Fail
Sample text	11.28:1	Pass	Pass	Pass

#373B40 as text on	Ratio	AA	AAA	AA large
Sample text	11.28:1	Pass	Pass	Pass
Sample text	1.86:1	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 #373B40 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #373b40; }
.text { color: #373b40; }
.border { border: 2px solid #373b40; }
.transparent { background-color: rgb(55 59 64 / 50%); }
.gradient { background: linear-gradient(to right, #373b40, #373740); }

Background

Text color

Border

Similar colors

Closest common color name: Graphite.

Questions

What color is #373B40?: #373B40 is a dark gray, closest to the named color Artist’s Charcoal. It belongs to the gray family of colors.
What is the RGB value of #373B40?: The RGB value is 55, 59, 64: 55 red, 59 green and 64 blue on a 0 to 255 scale.
What is the complementary color of #373B40?: The complementary color is #403C37, found by rotating the hue 180° on the color wheel.
Is black or white text better on #373B40?: White text. Black text has a contrast ratio of 1.86:1 and white text 11.28:1. WCAG asks for at least 4.5:1 for normal text.