What color is #37585B?

#37585B is a dark, grayish cyan, closest to the named color Arctic Nights. It belongs to the gray family of colors.

What is the RGB value of #37585B?

The RGB value is 55, 88, 91: 55 red, 88 green and 91 blue on a 0 to 255 scale.

What is the complementary color of #37585B?

The complementary color is #5B3A37, found by rotating the hue 180° on the color wheel.

Is black or white text better on #37585B?

White text. Black text has a contrast ratio of 2.71:1 and white text 7.75:1. WCAG asks for at least 4.5:1 for normal text.

#37585B color

#37585B rgb(55, 88, 91)

Shades of gray

The hex color #37585B is a dark, grayish cyan.

In the RGB color model it is made of 21.6% red, 34.5% green and 35.7% blue (55, 88, 91).

Its hue angle is 185°, with 25% saturation and 29% lightness. For print, the CMYK equivalent is 40% cyan, 3% magenta, 0% yellow and 64% black.

The closest named color is Arctic Nights (#345C61), a difference of 1.9 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 7.75:1).

#37585B color codes

HEX	`#37585B`
RGB	`rgb(55, 88, 91)`
RGB percent	`rgb(21.6%, 34.5%, 35.7%)`
HSL	`hsl(185, 25%, 29%)`
HSV / HSB	`hsv(185, 40%, 36%)`
CMYK	`cmyk(40%, 3%, 0%, 64%)`
CIE LAB	`lab(35.1, -11.13, -5.55)`
CIE LCH	`lch(35.1, 12.44, 206.52)`
CIE XYZ	`xyz(6.953, 8.547, 11.179)`
Decimal	`3627099`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #37585B, 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 #37585B	Ratio	AA	AAA	AA large
Sample text	2.71:1	Fail	Fail	Fail
Sample text	7.75:1	Pass	Pass	Pass

#37585B as text on	Ratio	AA	AAA	AA large
Sample text	7.75:1	Pass	Pass	Pass
Sample text	2.71:1	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 #37585B looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #37585b; }
.text { color: #37585b; }
.border { border: 2px solid #37585b; }
.transparent { background-color: rgb(55 88 91 / 50%); }
.gradient { background: linear-gradient(to right, #37585b, #37465b); }

Background

Text color

Border

Similar colors

Questions

What color is #37585B?: #37585B is a dark, grayish cyan, closest to the named color Arctic Nights. It belongs to the gray family of colors.
What is the RGB value of #37585B?: The RGB value is 55, 88, 91: 55 red, 88 green and 91 blue on a 0 to 255 scale.
What is the complementary color of #37585B?: The complementary color is #5B3A37, found by rotating the hue 180° on the color wheel.
Is black or white text better on #37585B?: White text. Black text has a contrast ratio of 2.71:1 and white text 7.75:1. WCAG asks for at least 4.5:1 for normal text.