What color is #51A78A?

#51A78A is a desaturated spring green, closest to the named color Hole in One. It belongs to the green family of colors.

What is the RGB value of #51A78A?

The RGB value is 81, 167, 138: 81 red, 167 green and 138 blue on a 0 to 255 scale.

What is the complementary color of #51A78A?

The complementary color is #A7516E, found by rotating the hue 180° on the color wheel.

Is black or white text better on #51A78A?

Black text. Black text has a contrast ratio of 7.24:1 and white text 2.9:1. WCAG asks for at least 4.5:1 for normal text.

#51A78A color

#51A78A rgb(81, 167, 138)

Shades of green

The hex color #51A78A is a desaturated spring green.

In the RGB color model it is made of 31.8% red, 65.5% green and 54.1% blue (81, 167, 138).

Its hue angle is 160°, with 35% saturation and 49% lightness. For print, the CMYK equivalent is 51% cyan, 0% magenta, 17% yellow and 35% black.

The closest named color is Hole in One (#4AAE97), a difference of 3.3 ΔE, a small difference.

Black text is the more readable choice on this background (contrast 7.24:1).

#51A78A color codes

HEX	`#51A78A`
RGB	`rgb(81, 167, 138)`
RGB percent	`rgb(31.8%, 65.5%, 54.1%)`
HSL	`hsl(160, 35%, 49%)`
HSV / HSB	`hsv(160, 51%, 65%)`
CMYK	`cmyk(51%, 0%, 17%, 35%)`
CIE LAB	`lab(62.69, -33.14, 7.12)`
CIE LCH	`lch(62.69, 33.9, 167.88)`
CIE XYZ	`xyz(21.797, 31.22, 28.917)`
Decimal	`5351306`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #51A78A, 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 #51A78A	Ratio	AA	AAA	AA large
Sample text	7.24:1	Pass	Pass	Pass
Sample text	2.9:1	Fail	Fail	Fail

#51A78A as text on	Ratio	AA	AAA	AA large
Sample text	2.9:1	Fail	Fail	Fail
Sample text	7.24:1	Pass	Pass	Pass

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 #51A78A looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #51a78a; }
.text { color: #51a78a; }
.border { border: 2px solid #51a78a; }
.transparent { background-color: rgb(81 167 138 / 50%); }
.gradient { background: linear-gradient(to right, #51a78a, #5199a7); }

Background

Text color

Border

Similar colors

Closest common color name: Mint.

Questions

What color is #51A78A?: #51A78A is a desaturated spring green, closest to the named color Hole in One. It belongs to the green family of colors.
What is the RGB value of #51A78A?: The RGB value is 81, 167, 138: 81 red, 167 green and 138 blue on a 0 to 255 scale.
What is the complementary color of #51A78A?: The complementary color is #A7516E, found by rotating the hue 180° on the color wheel.
Is black or white text better on #51A78A?: Black text. Black text has a contrast ratio of 7.24:1 and white text 2.9:1. WCAG asks for at least 4.5:1 for normal text.