What color is #51597B?

#51597B is a grayish blue, closest to the named color Deep Indigo. It belongs to the blue family of colors.

What is the RGB value of #51597B?

The RGB value is 81, 89, 123: 81 red, 89 green and 123 blue on a 0 to 255 scale.

What is the complementary color of #51597B?

The complementary color is #7B7351, found by rotating the hue 180° on the color wheel.

Is black or white text better on #51597B?

White text. Black text has a contrast ratio of 3.06:1 and white text 6.85:1. WCAG asks for at least 4.5:1 for normal text.

#51597B color

#51597B rgb(81, 89, 123)

Shades of blue

The hex color #51597B is a grayish blue.

In the RGB color model it is made of 31.8% red, 34.9% green and 48.2% blue (81, 89, 123).

Its hue angle is 229°, with 21% saturation and 40% lightness. For print, the CMYK equivalent is 34% cyan, 28% magenta, 0% yellow and 52% black.

The closest named color is Deep Indigo (#4C567A), a difference of 1.4 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 6.85:1).

#51597B color codes

HEX	`#51597B`
RGB	`rgb(81, 89, 123)`
RGB percent	`rgb(31.8%, 34.9%, 48.2%)`
HSL	`hsl(229, 21%, 40%)`
HSV / HSB	`hsv(229, 34%, 48%)`
CMYK	`cmyk(34%, 28%, 0%, 52%)`
CIE LAB	`lab(38.42, 5.66, -20.19)`
CIE LCH	`lch(38.42, 20.97, 285.65)`
CIE XYZ	`xyz(10.54, 10.324, 20.172)`
Decimal	`5331323`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #51597B, 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 #51597B	Ratio	AA	AAA	AA large
Sample text	3.06:1	Fail	Fail	Pass
Sample text	6.85:1	Pass	Fail	Pass

#51597B as text on	Ratio	AA	AAA	AA large
Sample text	6.85:1	Pass	Fail	Pass
Sample text	3.06:1	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 #51597B looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #51597b; }
.text { color: #51597b; }
.border { border: 2px solid #51597b; }
.transparent { background-color: rgb(81 89 123 / 50%); }
.gradient { background: linear-gradient(to right, #51597b, #5e517b); }

Background

Text color

Border

Similar colors

Closest common color name: Dark Slate Blue.

Questions

What color is #51597B?: #51597B is a grayish blue, closest to the named color Deep Indigo. It belongs to the blue family of colors.
What is the RGB value of #51597B?: The RGB value is 81, 89, 123: 81 red, 89 green and 123 blue on a 0 to 255 scale.
What is the complementary color of #51597B?: The complementary color is #7B7351, found by rotating the hue 180° on the color wheel.
Is black or white text better on #51597B?: White text. Black text has a contrast ratio of 3.06:1 and white text 6.85:1. WCAG asks for at least 4.5:1 for normal text.