What color is #51555C?

#51555C is a gray, closest to the named color Isolation. It belongs to the gray family of colors.

What is the RGB value of #51555C?

The RGB value is 81, 85, 92: 81 red, 85 green and 92 blue on a 0 to 255 scale.

What is the complementary color of #51555C?

The complementary color is #5C5851, found by rotating the hue 180° on the color wheel.

Is black or white text better on #51555C?

White text. Black text has a contrast ratio of 2.8:1 and white text 7.49:1. WCAG asks for at least 4.5:1 for normal text.

#51555C color

#51555C rgb(81, 85, 92)

Shades of gray

The hex color #51555C is a gray.

In the RGB color model it is made of 31.8% red, 33.3% green and 36.1% blue (81, 85, 92).

Its hue angle is 218°, with 6% saturation and 34% lightness. For print, the CMYK equivalent is 12% cyan, 8% magenta, 0% yellow and 64% black.

The closest named color is Isolation (#494D55), a difference of 2.8 ΔE, a small difference.

White text is the more readable choice on this background (contrast 7.49:1).

#51555C color codes

HEX	`#51555C`
RGB	`rgb(81, 85, 92)`
RGB percent	`rgb(31.8%, 33.3%, 36.1%)`
HSL	`hsl(218, 6%, 34%)`
HSV / HSB	`hsv(218, 12%, 36%)`
CMYK	`cmyk(12%, 8%, 0%, 64%)`
CIE LAB	`lab(36.02, 0.01, -4.61)`
CIE LCH	`lch(36.02, 4.61, 270.1)`
CIE XYZ	`xyz(8.573, 9.019, 11.412)`
Decimal	`5330268`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #51555C, 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 #51555C	Ratio	AA	AAA	AA large
Sample text	2.8:1	Fail	Fail	Fail
Sample text	7.49:1	Pass	Pass	Pass

#51555C as text on	Ratio	AA	AAA	AA large
Sample text	7.49:1	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 #51555C looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #51555c; }
.text { color: #51555c; }
.border { border: 2px solid #51555c; }
.transparent { background-color: rgb(81 85 92 / 50%); }
.gradient { background: linear-gradient(to right, #51555c, #53515c); }

Background

Text color

Border

Similar colors

Closest common color name: Charcoal.

Questions

What color is #51555C?: #51555C is a gray, closest to the named color Isolation. It belongs to the gray family of colors.
What is the RGB value of #51555C?: The RGB value is 81, 85, 92: 81 red, 85 green and 92 blue on a 0 to 255 scale.
What is the complementary color of #51555C?: The complementary color is #5C5851, found by rotating the hue 180° on the color wheel.
Is black or white text better on #51555C?: White text. Black text has a contrast ratio of 2.8:1 and white text 7.49:1. WCAG asks for at least 4.5:1 for normal text.