What color is #517D90?

#517D90 is a desaturated azure, closest to the named color Night Owl. It belongs to the blue family of colors.

What is the RGB value of #517D90?

The RGB value is 81, 125, 144: 81 red, 125 green and 144 blue on a 0 to 255 scale.

What is the complementary color of #517D90?

The complementary color is #906451, found by rotating the hue 180° on the color wheel.

Is black or white text better on #517D90?

Black text. Black text has a contrast ratio of 4.69:1 and white text 4.48:1. WCAG asks for at least 4.5:1 for normal text.

#517D90 color

#517D90 rgb(81, 125, 144)

Shades of blue

The hex color #517D90 is a desaturated azure.

In the RGB color model it is made of 31.8% red, 49% green and 56.5% blue (81, 125, 144).

Its hue angle is 198°, with 28% saturation and 44% lightness. For print, the CMYK equivalent is 44% cyan, 13% magenta, 0% yellow and 44% black.

The closest named color is Night Owl (#5D7B89), a difference of 3.1 ΔE, a small difference.

Black text is the more readable choice on this background (contrast 4.69:1).

#517D90 color codes

HEX	`#517D90`
RGB	`rgb(81, 125, 144)`
RGB percent	`rgb(31.8%, 49%, 56.5%)`
HSL	`hsl(198, 28%, 44%)`
HSV / HSB	`hsv(198, 44%, 56%)`
CMYK	`cmyk(44%, 13%, 0%, 44%)`
CIE LAB	`lab(50.01, -9.85, -15.02)`
CIE LCH	`lch(50.01, 17.96, 236.75)`
CIE XYZ	`xyz(15.759, 18.429, 29.107)`
Decimal	`5340560`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #517D90, 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 #517D90	Ratio	AA	AAA	AA large
Sample text	4.69:1	Pass	Fail	Pass
Sample text	4.48:1	Fail	Fail	Pass

#517D90 as text on	Ratio	AA	AAA	AA large
Sample text	4.48:1	Fail	Fail	Pass
Sample text	4.69:1	Pass	Fail	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 #517D90 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #517d90; }
.text { color: #517d90; }
.border { border: 2px solid #517d90; }
.transparent { background-color: rgb(81 125 144 / 50%); }
.gradient { background: linear-gradient(to right, #517d90, #515e90); }

Background

Text color

Border

Similar colors

Closest common color name: Air Force Blue.

Questions

What color is #517D90?: #517D90 is a desaturated azure, closest to the named color Night Owl. It belongs to the blue family of colors.
What is the RGB value of #517D90?: The RGB value is 81, 125, 144: 81 red, 125 green and 144 blue on a 0 to 255 scale.
What is the complementary color of #517D90?: The complementary color is #906451, found by rotating the hue 180° on the color wheel.
Is black or white text better on #517D90?: Black text. Black text has a contrast ratio of 4.69:1 and white text 4.48:1. WCAG asks for at least 4.5:1 for normal text.