What color is #51788C?

#51788C 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 #51788C?

The RGB value is 81, 120, 140: 81 red, 120 green and 140 blue on a 0 to 255 scale.

What is the complementary color of #51788C?

The complementary color is #8C6551, found by rotating the hue 180° on the color wheel.

Is black or white text better on #51788C?

White text. Black text has a contrast ratio of 4.42:1 and white text 4.76:1. WCAG asks for at least 4.5:1 for normal text.

#51788C color

#51788C rgb(81, 120, 140)

Shades of blue

The hex color #51788C is a desaturated azure.

In the RGB color model it is made of 31.8% red, 47.1% green and 54.9% blue (81, 120, 140).

Its hue angle is 200°, with 27% saturation and 43% lightness. For print, the CMYK equivalent is 42% cyan, 14% magenta, 0% yellow and 45% black.

The closest named color is Night Owl (#5D7B89), a difference of 2.9 ΔE, a small difference.

White text is the more readable choice on this background (contrast 4.76:1).

#51788C color codes

HEX	`#51788C`
RGB	`rgb(81, 120, 140)`
RGB percent	`rgb(31.8%, 47.1%, 54.9%)`
HSL	`hsl(200, 27%, 43%)`
HSV / HSB	`hsv(200, 42%, 55%)`
CMYK	`cmyk(42%, 14%, 0%, 45%)`
CIE LAB	`lab(48.35, -8.14, -15.19)`
CIE LCH	`lch(48.35, 17.23, 241.81)`
CIE XYZ	`xyz(14.842, 17.075, 27.32)`
Decimal	`5339276`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #51788C, 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 #51788C	Ratio	AA	AAA	AA large
Sample text	4.42:1	Fail	Fail	Pass
Sample text	4.76:1	Pass	Fail	Pass

#51788C as text on	Ratio	AA	AAA	AA large
Sample text	4.76:1	Pass	Fail	Pass
Sample text	4.42:1	Fail	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 #51788C looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #51788c; }
.text { color: #51788c; }
.border { border: 2px solid #51788c; }
.transparent { background-color: rgb(81 120 140 / 50%); }
.gradient { background: linear-gradient(to right, #51788c, #515a8c); }

Background

Text color

Border

Similar colors

Closest common color name: Cerulean.

Questions

What color is #51788C?: #51788C 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 #51788C?: The RGB value is 81, 120, 140: 81 red, 120 green and 140 blue on a 0 to 255 scale.
What is the complementary color of #51788C?: The complementary color is #8C6551, found by rotating the hue 180° on the color wheel.
Is black or white text better on #51788C?: White text. Black text has a contrast ratio of 4.42:1 and white text 4.76:1. WCAG asks for at least 4.5:1 for normal text.