What color is #213B3A?

#213B3A is a very dark, desaturated cyan, closest to the named color Emerald Forest. It belongs to the gray family of colors.

What is the RGB value of #213B3A?

The RGB value is 33, 59, 58: 33 red, 59 green and 58 blue on a 0 to 255 scale.

What is the complementary color of #213B3A?

The complementary color is #3B2122, found by rotating the hue 180° on the color wheel.

Is black or white text better on #213B3A?

White text. Black text has a contrast ratio of 1.75:1 and white text 11.99:1. WCAG asks for at least 4.5:1 for normal text.

#213B3A color

#213B3A rgb(33, 59, 58)

Shades of gray

The hex color #213B3A is a very dark, desaturated cyan.

In the RGB color model it is made of 12.9% red, 23.1% green and 22.7% blue (33, 59, 58).

Its hue angle is 178°, with 28% saturation and 18% lightness. For print, the CMYK equivalent is 44% cyan, 0% magenta, 2% yellow and 77% black.

The closest named color is Emerald Forest (#224347), a difference of 3.7 ΔE, a small difference.

White text is the more readable choice on this background (contrast 11.99:1).

#213B3A color codes

HEX	`#213B3A`
RGB	`rgb(33, 59, 58)`
RGB percent	`rgb(12.9%, 23.1%, 22.7%)`
HSL	`hsl(178, 28%, 18%)`
HSV / HSB	`hsv(178, 44%, 23%)`
CMYK	`cmyk(44%, 0%, 2%, 77%)`
CIE LAB	`lab(22.85, -10.24, -2.53)`
CIE LCH	`lch(22.85, 10.55, 193.88)`
CIE XYZ	`xyz(2.955, 3.757, 4.572)`
Decimal	`2177850`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #213B3A, 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 #213B3A	Ratio	AA	AAA	AA large
Sample text	1.75:1	Fail	Fail	Fail
Sample text	11.99:1	Pass	Pass	Pass

#213B3A as text on	Ratio	AA	AAA	AA large
Sample text	11.99:1	Pass	Pass	Pass
Sample text	1.75:1	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 #213B3A looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #213b3a; }
.text { color: #213b3a; }
.border { border: 2px solid #213b3a; }
.transparent { background-color: rgb(33 59 58 / 50%); }
.gradient { background: linear-gradient(to right, #213b3a, #212f3b); }

Background

Text color

Border

Similar colors

Closest common color name: Dark Slate Gray.

Questions

What color is #213B3A?: #213B3A is a very dark, desaturated cyan, closest to the named color Emerald Forest. It belongs to the gray family of colors.
What is the RGB value of #213B3A?: The RGB value is 33, 59, 58: 33 red, 59 green and 58 blue on a 0 to 255 scale.
What is the complementary color of #213B3A?: The complementary color is #3B2122, found by rotating the hue 180° on the color wheel.
Is black or white text better on #213B3A?: White text. Black text has a contrast ratio of 1.75:1 and white text 11.99:1. WCAG asks for at least 4.5:1 for normal text.