What color is #51536B?

#51536B is a dark, grayish blue, closest to the named color Intergalactic. It belongs to the blue family of colors.

What is the RGB value of #51536B?

The RGB value is 81, 83, 107: 81 red, 83 green and 107 blue on a 0 to 255 scale.

What is the complementary color of #51536B?

The complementary color is #6B6951, found by rotating the hue 180° on the color wheel.

Is black or white text better on #51536B?

White text. Black text has a contrast ratio of 2.8:1 and white text 7.5:1. WCAG asks for at least 4.5:1 for normal text.

#51536B color

#51536B rgb(81, 83, 107)

Shades of blue

The hex color #51536B is a dark, grayish blue.

In the RGB color model it is made of 31.8% red, 32.5% green and 42% blue (81, 83, 107).

Its hue angle is 235°, with 14% saturation and 37% lightness. For print, the CMYK equivalent is 24% cyan, 22% magenta, 0% yellow and 58% black.

The closest named color is Intergalactic (#4D516C), a difference of 1.5 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 7.5:1).

#51536B color codes

HEX	`#51536B`
RGB	`rgb(81, 83, 107)`
RGB percent	`rgb(31.8%, 32.5%, 42%)`
HSL	`hsl(235, 14%, 37%)`
HSV / HSB	`hsv(235, 24%, 42%)`
CMYK	`cmyk(24%, 22%, 0%, 58%)`
CIE LAB	`lab(35.98, 5.02, -14.05)`
CIE LCH	`lch(35.98, 14.92, 289.68)`
CIE XYZ	`xyz(9.14, 8.997, 15.162)`
Decimal	`5329771`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #51536B, 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 #51536B	Ratio	AA	AAA	AA large
Sample text	2.8:1	Fail	Fail	Fail
Sample text	7.5:1	Pass	Pass	Pass

#51536B as text on	Ratio	AA	AAA	AA large
Sample text	7.5:1	Pass	Pass	Pass
Sample text	2.8:1	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 #51536B looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #51536b; }
.text { color: #51536b; }
.border { border: 2px solid #51536b; }
.transparent { background-color: rgb(81 83 107 / 50%); }
.gradient { background: linear-gradient(to right, #51536b, #5c516b); }

Background

Text color

Border

Similar colors

Closest common color name: Charcoal.

Questions

What color is #51536B?: #51536B is a dark, grayish blue, closest to the named color Intergalactic. It belongs to the blue family of colors.
What is the RGB value of #51536B?: The RGB value is 81, 83, 107: 81 red, 83 green and 107 blue on a 0 to 255 scale.
What is the complementary color of #51536B?: The complementary color is #6B6951, found by rotating the hue 180° on the color wheel.
Is black or white text better on #51536B?: White text. Black text has a contrast ratio of 2.8:1 and white text 7.5:1. WCAG asks for at least 4.5:1 for normal text.