What color is #51B7A8?

#51B7A8 is a desaturated spring green, closest to the named color Tropical Escape. It belongs to the teal family of colors.

What is the RGB value of #51B7A8?

The RGB value is 81, 183, 168: 81 red, 183 green and 168 blue on a 0 to 255 scale.

What is the complementary color of #51B7A8?

The complementary color is #B75160, found by rotating the hue 180° on the color wheel.

Is black or white text better on #51B7A8?

Black text. Black text has a contrast ratio of 8.69:1 and white text 2.42:1. WCAG asks for at least 4.5:1 for normal text.

#51B7A8 color

#51B7A8 rgb(81, 183, 168)

Shades of teal

The hex color #51B7A8 is a desaturated spring green.

In the RGB color model it is made of 31.8% red, 71.8% green and 65.9% blue (81, 183, 168).

Its hue angle is 171°, with 41% saturation and 52% lightness. For print, the CMYK equivalent is 56% cyan, 0% magenta, 8% yellow and 28% black.

The closest named color is Tropical Escape (#4DBBAF), a difference of 1.7 ΔE, which is barely visible.

Black text is the more readable choice on this background (contrast 8.69:1).

#51B7A8 color codes

HEX	`#51B7A8`
RGB	`rgb(81, 183, 168)`
RGB percent	`rgb(31.8%, 71.8%, 65.9%)`
HSL	`hsl(171, 41%, 52%)`
HSV / HSB	`hsv(171, 56%, 72%)`
CMYK	`cmyk(56%, 0%, 8%, 28%)`
CIE LAB	`lab(68.34, -33.29, -1.33)`
CIE LCH	`lch(68.34, 33.31, 182.29)`
CIE XYZ	`xyz(27.392, 38.441, 43.014)`
Decimal	`5355432`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #51B7A8, 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 #51B7A8	Ratio	AA	AAA	AA large
Sample text	8.69:1	Pass	Pass	Pass
Sample text	2.42:1	Fail	Fail	Fail

#51B7A8 as text on	Ratio	AA	AAA	AA large
Sample text	2.42:1	Fail	Fail	Fail
Sample text	8.69:1	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 #51B7A8 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #51b7a8; }
.text { color: #51b7a8; }
.border { border: 2px solid #51b7a8; }
.transparent { background-color: rgb(81 183 168 / 50%); }
.gradient { background: linear-gradient(to right, #51b7a8, #5193b7); }

Background

Text color

Border

Similar colors

Closest common color name: Light Sea Green.

Questions

What color is #51B7A8?: #51B7A8 is a desaturated spring green, closest to the named color Tropical Escape. It belongs to the teal family of colors.
What is the RGB value of #51B7A8?: The RGB value is 81, 183, 168: 81 red, 183 green and 168 blue on a 0 to 255 scale.
What is the complementary color of #51B7A8?: The complementary color is #B75160, found by rotating the hue 180° on the color wheel.
Is black or white text better on #51B7A8?: Black text. Black text has a contrast ratio of 8.69:1 and white text 2.42:1. WCAG asks for at least 4.5:1 for normal text.