What color is #2B517D?

#2B517D is a dark, desaturated azure, closest to the named color Slumber. It belongs to the blue family of colors.

What is the RGB value of #2B517D?

The RGB value is 43, 81, 125: 43 red, 81 green and 125 blue on a 0 to 255 scale.

What is the complementary color of #2B517D?

The complementary color is #7D572B, found by rotating the hue 180° on the color wheel.

Is black or white text better on #2B517D?

White text. Black text has a contrast ratio of 2.58:1 and white text 8.15:1. WCAG asks for at least 4.5:1 for normal text.

#2B517D color

#2B517D rgb(43, 81, 125)

Shades of blue

The hex color #2B517D is a dark, desaturated azure.

In the RGB color model it is made of 16.9% red, 31.8% green and 49% blue (43, 81, 125).

Its hue angle is 212°, with 49% saturation and 33% lightness. For print, the CMYK equivalent is 66% cyan, 35% magenta, 0% yellow and 51% black.

The closest named color is Slumber (#2D517C), a difference of 0.3 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 8.15:1).

#2B517D color codes

HEX	`#2B517D`
RGB	`rgb(43, 81, 125)`
RGB percent	`rgb(16.9%, 31.8%, 49%)`
HSL	`hsl(212, 49%, 33%)`
HSV / HSB	`hsv(212, 66%, 49%)`
CMYK	`cmyk(66%, 35%, 0%, 51%)`
CIE LAB	`lab(33.73, 1.43, -28.92)`
CIE LCH	`lch(33.73, 28.96, 272.83)`
CIE XYZ	`xyz(7.639, 7.878, 20.516)`
Decimal	`2838909`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #2B517D, 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 #2B517D	Ratio	AA	AAA	AA large
Sample text	2.58:1	Fail	Fail	Fail
Sample text	8.15:1	Pass	Pass	Pass

#2B517D as text on	Ratio	AA	AAA	AA large
Sample text	8.15:1	Pass	Pass	Pass
Sample text	2.58:1	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 #2B517D looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #2b517d; }
.text { color: #2b517d; }
.border { border: 2px solid #2b517d; }
.transparent { background-color: rgb(43 81 125 / 50%); }
.gradient { background: linear-gradient(to right, #2b517d, #2e2b7d); }

Background

Text color

Border

Similar colors

Closest common color name: Cobalt Blue.

Questions

What color is #2B517D?: #2B517D is a dark, desaturated azure, closest to the named color Slumber. It belongs to the blue family of colors.
What is the RGB value of #2B517D?: The RGB value is 43, 81, 125: 43 red, 81 green and 125 blue on a 0 to 255 scale.
What is the complementary color of #2B517D?: The complementary color is #7D572B, found by rotating the hue 180° on the color wheel.
Is black or white text better on #2B517D?: White text. Black text has a contrast ratio of 2.58:1 and white text 8.15:1. WCAG asks for at least 4.5:1 for normal text.