What color is #213A55?

#213A55 is a dark, desaturated azure, closest to the named color Nautilus. It belongs to the blue family of colors.

What is the RGB value of #213A55?

The RGB value is 33, 58, 85: 33 red, 58 green and 85 blue on a 0 to 255 scale.

What is the complementary color of #213A55?

The complementary color is #553C21, found by rotating the hue 180° on the color wheel.

Is black or white text better on #213A55?

White text. Black text has a contrast ratio of 1.8:1 and white text 11.66:1. WCAG asks for at least 4.5:1 for normal text.

#213A55 color

#213A55 rgb(33, 58, 85)

Shades of blue

The hex color #213A55 is a dark, desaturated azure.

In the RGB color model it is made of 12.9% red, 22.7% green and 33.3% blue (33, 58, 85).

Its hue angle is 211°, with 44% saturation and 23% lightness. For print, the CMYK equivalent is 61% cyan, 32% magenta, 0% yellow and 67% black.

The closest named color is Nautilus (#273C5A), a difference of 2.2 ΔE, a small difference.

White text is the more readable choice on this background (contrast 11.66:1).

#213A55 color codes

HEX	`#213A55`
RGB	`rgb(33, 58, 85)`
RGB percent	`rgb(12.9%, 22.7%, 33.3%)`
HSL	`hsl(211, 44%, 23%)`
HSV / HSB	`hsv(211, 61%, 33%)`
CMYK	`cmyk(61%, 32%, 0%, 67%)`
CIE LAB	`lab(23.69, -0.41, -19.23)`
CIE LCH	`lch(23.69, 19.23, 268.78)`
CIE XYZ	`xyz(3.779, 4.005, 9.166)`
Decimal	`2177621`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #213A55, 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 #213A55	Ratio	AA	AAA	AA large
Sample text	1.8:1	Fail	Fail	Fail
Sample text	11.66:1	Pass	Pass	Pass

#213A55 as text on	Ratio	AA	AAA	AA large
Sample text	11.66:1	Pass	Pass	Pass
Sample text	1.8:1	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 #213A55 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #213a55; }
.text { color: #213a55; }
.border { border: 2px solid #213a55; }
.transparent { background-color: rgb(33 58 85 / 50%); }
.gradient { background: linear-gradient(to right, #213a55, #222155); }

Background

Text color

Border

Similar colors

Questions

What color is #213A55?: #213A55 is a dark, desaturated azure, closest to the named color Nautilus. It belongs to the blue family of colors.
What is the RGB value of #213A55?: The RGB value is 33, 58, 85: 33 red, 58 green and 85 blue on a 0 to 255 scale.
What is the complementary color of #213A55?: The complementary color is #553C21, found by rotating the hue 180° on the color wheel.
Is black or white text better on #213A55?: White text. Black text has a contrast ratio of 1.8:1 and white text 11.66:1. WCAG asks for at least 4.5:1 for normal text.