What color is #311D51?

#311D51 is a dark, desaturated violet, closest to the named color Stormy Night. It belongs to the purple family of colors.

What is the RGB value of #311D51?

The RGB value is 49, 29, 81: 49 red, 29 green and 81 blue on a 0 to 255 scale.

What is the complementary color of #311D51?

The complementary color is #3D511D, found by rotating the hue 180° on the color wheel.

Is black or white text better on #311D51?

White text. Black text has a contrast ratio of 1.43:1 and white text 14.74:1. WCAG asks for at least 4.5:1 for normal text.

#311D51 color

#311D51 rgb(49, 29, 81)

Shades of purple

The hex color #311D51 is a dark, desaturated violet.

In the RGB color model it is made of 19.2% red, 11.4% green and 31.8% blue (49, 29, 81).

Its hue angle is 263°, with 47% saturation and 22% lightness. For print, the CMYK equivalent is 40% cyan, 64% magenta, 0% yellow and 68% black.

The closest named color is Stormy Night (#372354), a difference of 1.9 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 14.74:1).

#311D51 color codes

HEX	`#311D51`
RGB	`rgb(49, 29, 81)`
RGB percent	`rgb(19.2%, 11.4%, 31.8%)`
HSL	`hsl(263, 47%, 22%)`
HSV / HSB	`hsv(263, 64%, 32%)`
CMYK	`cmyk(40%, 64%, 0%, 68%)`
CIE LAB	`lab(16.13, 22.79, -28.45)`
CIE LCH	`lch(16.13, 36.45, 308.69)`
CIE XYZ	`xyz(3.191, 2.126, 8.025)`
Decimal	`3218769`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #311D51, 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 #311D51	Ratio	AA	AAA	AA large
Sample text	1.43:1	Fail	Fail	Fail
Sample text	14.74:1	Pass	Pass	Pass

#311D51 as text on	Ratio	AA	AAA	AA large
Sample text	14.74:1	Pass	Pass	Pass
Sample text	1.43:1	Fail	Fail	Fail

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 #311D51 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #311d51; }
.text { color: #311d51; }
.border { border: 2px solid #311d51; }
.transparent { background-color: rgb(49 29 81 / 50%); }
.gradient { background: linear-gradient(to right, #311d51, #4b1d51); }

Background

Text color

Border

Similar colors

Closest common color name: Dark Purple.

Questions

What color is #311D51?: #311D51 is a dark, desaturated violet, closest to the named color Stormy Night. It belongs to the purple family of colors.
What is the RGB value of #311D51?: The RGB value is 49, 29, 81: 49 red, 29 green and 81 blue on a 0 to 255 scale.
What is the complementary color of #311D51?: The complementary color is #3D511D, found by rotating the hue 180° on the color wheel.
Is black or white text better on #311D51?: White text. Black text has a contrast ratio of 1.43:1 and white text 14.74:1. WCAG asks for at least 4.5:1 for normal text.