What color is #373B54?

#373B54 is a dark, grayish blue, closest to the named color Mediaeval Blue. It belongs to the blue family of colors.

What is the RGB value of #373B54?

The RGB value is 55, 59, 84: 55 red, 59 green and 84 blue on a 0 to 255 scale.

What is the complementary color of #373B54?

The complementary color is #545037, found by rotating the hue 180° on the color wheel.

Is black or white text better on #373B54?

White text. Black text has a contrast ratio of 1.92:1 and white text 10.96:1. WCAG asks for at least 4.5:1 for normal text.

#373B54 color

#373B54 rgb(55, 59, 84)

Shades of blue

The hex color #373B54 is a dark, grayish blue.

In the RGB color model it is made of 21.6% red, 23.1% green and 32.9% blue (55, 59, 84).

Its hue angle is 232°, with 21% saturation and 27% lightness. For print, the CMYK equivalent is 35% cyan, 30% magenta, 0% yellow and 67% black.

The closest named color is Mediaeval Blue (#2E3858), a difference of 3.2 ΔE, a small difference.

White text is the more readable choice on this background (contrast 10.96:1).

#373B54 color codes

HEX	`#373B54`
RGB	`rgb(55, 59, 84)`
RGB percent	`rgb(21.6%, 23.1%, 32.9%)`
HSL	`hsl(232, 21%, 27%)`
HSV / HSB	`hsv(232, 35%, 33%)`
CMYK	`cmyk(35%, 30%, 0%, 67%)`
CIE LAB	`lab(25.5, 5.14, -15.63)`
CIE LCH	`lch(25.5, 16.45, 288.2)`
CIE XYZ	`xyz(4.739, 4.58, 9.02)`
Decimal	`3619668`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #373B54, 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 #373B54	Ratio	AA	AAA	AA large
Sample text	1.92:1	Fail	Fail	Fail
Sample text	10.96:1	Pass	Pass	Pass

#373B54 as text on	Ratio	AA	AAA	AA large
Sample text	10.96:1	Pass	Pass	Pass
Sample text	1.92:1	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 #373B54 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #373b54; }
.text { color: #373b54; }
.border { border: 2px solid #373b54; }
.transparent { background-color: rgb(55 59 84 / 50%); }
.gradient { background: linear-gradient(to right, #373b54, #423754); }

Background

Text color

Border

Similar colors

Closest common color name: Prussian Blue.

Questions

What color is #373B54?: #373B54 is a dark, grayish blue, closest to the named color Mediaeval Blue. It belongs to the blue family of colors.
What is the RGB value of #373B54?: The RGB value is 55, 59, 84: 55 red, 59 green and 84 blue on a 0 to 255 scale.
What is the complementary color of #373B54?: The complementary color is #545037, found by rotating the hue 180° on the color wheel.
Is black or white text better on #373B54?: White text. Black text has a contrast ratio of 1.92:1 and white text 10.96:1. WCAG asks for at least 4.5:1 for normal text.