What color is #2B3751?

#2B3751 is a dark, desaturated blue, closest to the named color Mediaeval Blue. It belongs to the blue family of colors.

What is the RGB value of #2B3751?

The RGB value is 43, 55, 81: 43 red, 55 green and 81 blue on a 0 to 255 scale.

What is the complementary color of #2B3751?

The complementary color is #51452B, found by rotating the hue 180° on the color wheel.

Is black or white text better on #2B3751?

White text. Black text has a contrast ratio of 1.77:1 and white text 11.88:1. WCAG asks for at least 4.5:1 for normal text.

#2B3751 color

#2B3751 rgb(43, 55, 81)

Shades of blue

The hex color #2B3751 is a dark, desaturated blue.

In the RGB color model it is made of 16.9% red, 21.6% green and 31.8% blue (43, 55, 81).

Its hue angle is 221°, with 31% saturation and 24% lightness. For print, the CMYK equivalent is 47% cyan, 32% magenta, 0% yellow and 68% black.

The closest named color is Mediaeval Blue (#2E3858), a difference of 2.6 ΔE, a small difference.

White text is the more readable choice on this background (contrast 11.88:1).

#2B3751 color codes

HEX	`#2B3751`
RGB	`rgb(43, 55, 81)`
RGB percent	`rgb(16.9%, 21.6%, 31.8%)`
HSL	`hsl(221, 31%, 24%)`
HSV / HSB	`hsv(221, 47%, 32%)`
CMYK	`cmyk(47%, 32%, 0%, 68%)`
CIE LAB	`lab(23.13, 2.99, -17.4)`
CIE LCH	`lch(23.13, 17.66, 279.75)`
CIE XYZ	`xyz(3.847, 3.84, 8.321)`
Decimal	`2832209`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #2B3751, 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 #2B3751	Ratio	AA	AAA	AA large
Sample text	1.77:1	Fail	Fail	Fail
Sample text	11.88:1	Pass	Pass	Pass

#2B3751 as text on	Ratio	AA	AAA	AA large
Sample text	11.88:1	Pass	Pass	Pass
Sample text	1.77:1	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 #2B3751 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #2b3751; }
.text { color: #2b3751; }
.border { border: 2px solid #2b3751; }
.transparent { background-color: rgb(43 55 81 / 50%); }
.gradient { background: linear-gradient(to right, #2b3751, #322b51); }

Background

Text color

Border

Similar colors

Closest common color name: Prussian Blue.

Questions

What color is #2B3751?: #2B3751 is a dark, desaturated blue, closest to the named color Mediaeval Blue. It belongs to the blue family of colors.
What is the RGB value of #2B3751?: The RGB value is 43, 55, 81: 43 red, 55 green and 81 blue on a 0 to 255 scale.
What is the complementary color of #2B3751?: The complementary color is #51452B, found by rotating the hue 180° on the color wheel.
Is black or white text better on #2B3751?: White text. Black text has a contrast ratio of 1.77:1 and white text 11.88:1. WCAG asks for at least 4.5:1 for normal text.