What color is #373E51?

#373E51 is a dark, grayish blue, closest to the named color Lava Stone. It belongs to the gray family of colors.

What is the RGB value of #373E51?

The RGB value is 55, 62, 81: 55 red, 62 green and 81 blue on a 0 to 255 scale.

What is the complementary color of #373E51?

The complementary color is #514A37, found by rotating the hue 180° on the color wheel.

Is black or white text better on #373E51?

White text. Black text has a contrast ratio of 1.97:1 and white text 10.66:1. WCAG asks for at least 4.5:1 for normal text.

#373E51 color

#373E51 rgb(55, 62, 81)

Shades of gray

The hex color #373E51 is a dark, grayish blue.

In the RGB color model it is made of 21.6% red, 24.3% green and 31.8% blue (55, 62, 81).

Its hue angle is 224°, with 19% saturation and 27% lightness. For print, the CMYK equivalent is 32% cyan, 23% magenta, 0% yellow and 68% black.

The closest named color is Lava Stone (#3C4151), a difference of 1.7 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 10.66:1).

#373E51 color codes

HEX	`#373E51`
RGB	`rgb(55, 62, 81)`
RGB percent	`rgb(21.6%, 24.3%, 31.8%)`
HSL	`hsl(224, 19%, 27%)`
HSV / HSB	`hsv(224, 32%, 32%)`
CMYK	`cmyk(32%, 23%, 0%, 68%)`
CIE LAB	`lab(26.31, 2.24, -12.42)`
CIE LCH	`lch(26.31, 12.62, 280.21)`
CIE XYZ	`xyz(4.783, 4.851, 8.467)`
Decimal	`3620433`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #373E51, 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 #373E51	Ratio	AA	AAA	AA large
Sample text	1.97:1	Fail	Fail	Fail
Sample text	10.66:1	Pass	Pass	Pass

#373E51 as text on	Ratio	AA	AAA	AA large
Sample text	10.66:1	Pass	Pass	Pass
Sample text	1.97:1	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 #373E51 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #373e51; }
.text { color: #373e51; }
.border { border: 2px solid #373e51; }
.transparent { background-color: rgb(55 62 81 / 50%); }
.gradient { background: linear-gradient(to right, #373e51, #3d3751); }

Background

Text color

Border

Similar colors

Closest common color name: Charcoal.

Questions

What color is #373E51?: #373E51 is a dark, grayish blue, closest to the named color Lava Stone. It belongs to the gray family of colors.
What is the RGB value of #373E51?: The RGB value is 55, 62, 81: 55 red, 62 green and 81 blue on a 0 to 255 scale.
What is the complementary color of #373E51?: The complementary color is #514A37, found by rotating the hue 180° on the color wheel.
Is black or white text better on #373E51?: White text. Black text has a contrast ratio of 1.97:1 and white text 10.66:1. WCAG asks for at least 4.5:1 for normal text.