What color is #374B57?

#374B57 is a dark, grayish azure, closest to the named color Nocturne. It belongs to the gray family of colors.

What is the RGB value of #374B57?

The RGB value is 55, 75, 87: 55 red, 75 green and 87 blue on a 0 to 255 scale.

What is the complementary color of #374B57?

The complementary color is #574337, found by rotating the hue 180° on the color wheel.

Is black or white text better on #374B57?

White text. Black text has a contrast ratio of 2.31:1 and white text 9.1:1. WCAG asks for at least 4.5:1 for normal text.

#374B57 color

#374B57 rgb(55, 75, 87)

Shades of gray

The hex color #374B57 is a dark, grayish azure.

In the RGB color model it is made of 21.6% red, 29.4% green and 34.1% blue (55, 75, 87).

Its hue angle is 203°, with 23% saturation and 28% lightness. For print, the CMYK equivalent is 37% cyan, 14% magenta, 0% yellow and 66% black.

The closest named color is Nocturne (#344D58), a difference of 2.1 ΔE, a small difference.

White text is the more readable choice on this background (contrast 9.1:1).

#374B57 color codes

HEX	`#374B57`
RGB	`rgb(55, 75, 87)`
RGB percent	`rgb(21.6%, 29.4%, 34.1%)`
HSL	`hsl(203, 23%, 28%)`
HSV / HSB	`hsv(203, 37%, 34%)`
CMYK	`cmyk(37%, 14%, 0%, 66%)`
CIE LAB	`lab(30.72, -4.39, -9.6)`
CIE LCH	`lch(30.72, 10.55, 245.42)`
CIE XYZ	`xyz(5.811, 6.532, 9.97)`
Decimal	`3623767`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #374B57, 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 #374B57	Ratio	AA	AAA	AA large
Sample text	2.31:1	Fail	Fail	Fail
Sample text	9.1:1	Pass	Pass	Pass

#374B57 as text on	Ratio	AA	AAA	AA large
Sample text	9.1:1	Pass	Pass	Pass
Sample text	2.31:1	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 #374B57 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #374b57; }
.text { color: #374b57; }
.border { border: 2px solid #374b57; }
.transparent { background-color: rgb(55 75 87 / 50%); }
.gradient { background: linear-gradient(to right, #374b57, #373b57); }

Background

Text color

Border

Similar colors

Questions

What color is #374B57?: #374B57 is a dark, grayish azure, closest to the named color Nocturne. It belongs to the gray family of colors.
What is the RGB value of #374B57?: The RGB value is 55, 75, 87: 55 red, 75 green and 87 blue on a 0 to 255 scale.
What is the complementary color of #374B57?: The complementary color is #574337, found by rotating the hue 180° on the color wheel.
Is black or white text better on #374B57?: White text. Black text has a contrast ratio of 2.31:1 and white text 9.1:1. WCAG asks for at least 4.5:1 for normal text.