What color is #213733?

#213733 is a very dark, desaturated spring green, closest to the named color Aztec. It belongs to the gray family of colors.

What is the RGB value of #213733?

The RGB value is 33, 55, 51: 33 red, 55 green and 51 blue on a 0 to 255 scale.

What is the complementary color of #213733?

The complementary color is #372125, found by rotating the hue 180° on the color wheel.

Is black or white text better on #213733?

White text. Black text has a contrast ratio of 1.66:1 and white text 12.66:1. WCAG asks for at least 4.5:1 for normal text.

#213733 color

#213733 rgb(33, 55, 51)

Shades of gray

The hex color #213733 is a very dark, desaturated spring green.

In the RGB color model it is made of 12.9% red, 21.6% green and 20% blue (33, 55, 51).

Its hue angle is 169°, with 25% saturation and 17% lightness. For print, the CMYK equivalent is 40% cyan, 0% magenta, 7% yellow and 78% black.

The closest named color is Aztec (#293432), a difference of 4.7 ΔE, a small difference.

White text is the more readable choice on this background (contrast 12.66:1).

#213733 color codes

HEX	`#213733`
RGB	`rgb(33, 55, 51)`
RGB percent	`rgb(12.9%, 21.6%, 20%)`
HSL	`hsl(169, 25%, 17%)`
HSV / HSB	`hsv(169, 40%, 22%)`
CMYK	`cmyk(40%, 0%, 7%, 78%)`
CIE LAB	`lab(21.19, -9.81, -0.26)`
CIE LCH	`lch(21.19, 9.82, 181.51)`
CIE XYZ	`xyz(2.591, 3.295, 3.631)`
Decimal	`2176819`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #213733, 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 #213733	Ratio	AA	AAA	AA large
Sample text	1.66:1	Fail	Fail	Fail
Sample text	12.66:1	Pass	Pass	Pass

#213733 as text on	Ratio	AA	AAA	AA large
Sample text	12.66:1	Pass	Pass	Pass
Sample text	1.66:1	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 #213733 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #213733; }
.text { color: #213733; }
.border { border: 2px solid #213733; }
.transparent { background-color: rgb(33 55 51 / 50%); }
.gradient { background: linear-gradient(to right, #213733, #213037); }

Background

Text color

Border

Similar colors

Closest common color name: Onyx.

Questions

What color is #213733?: #213733 is a very dark, desaturated spring green, closest to the named color Aztec. It belongs to the gray family of colors.
What is the RGB value of #213733?: The RGB value is 33, 55, 51: 33 red, 55 green and 51 blue on a 0 to 255 scale.
What is the complementary color of #213733?: The complementary color is #372125, found by rotating the hue 180° on the color wheel.
Is black or white text better on #213733?: White text. Black text has a contrast ratio of 1.66:1 and white text 12.66:1. WCAG asks for at least 4.5:1 for normal text.