What color is #213639?

#213639 is a very dark, desaturated cyan, closest to the named color Royal Neptune. It belongs to the gray family of colors.

What is the RGB value of #213639?

The RGB value is 33, 54, 57: 33 red, 54 green and 57 blue on a 0 to 255 scale.

What is the complementary color of #213639?

The complementary color is #392421, found by rotating the hue 180° on the color wheel.

Is black or white text better on #213639?

White text. Black text has a contrast ratio of 1.65:1 and white text 12.72:1. WCAG asks for at least 4.5:1 for normal text.

#213639 color

#213639 rgb(33, 54, 57)

Shades of gray

The hex color #213639 is a very dark, desaturated cyan.

In the RGB color model it is made of 12.9% red, 21.2% green and 22.4% blue (33, 54, 57).

Its hue angle is 188°, with 27% saturation and 18% lightness. For print, the CMYK equivalent is 42% cyan, 5% magenta, 0% yellow and 78% black.

The closest named color is Royal Neptune (#1C3B42), a difference of 3.1 ΔE, a small difference.

White text is the more readable choice on this background (contrast 12.72:1).

#213639 color codes

HEX	`#213639`
RGB	`rgb(33, 54, 57)`
RGB percent	`rgb(12.9%, 21.2%, 22.4%)`
HSL	`hsl(188, 27%, 18%)`
HSV / HSB	`hsv(188, 42%, 22%)`
CMYK	`cmyk(42%, 5%, 0%, 78%)`
CIE LAB	`lab(21.04, -7.4, -4.54)`
CIE LCH	`lch(21.04, 8.68, 211.51)`
CIE XYZ	`xyz(2.685, 3.257, 4.357)`
Decimal	`2176569`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #213639, 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 #213639	Ratio	AA	AAA	AA large
Sample text	1.65:1	Fail	Fail	Fail
Sample text	12.72:1	Pass	Pass	Pass

#213639 as text on	Ratio	AA	AAA	AA large
Sample text	12.72:1	Pass	Pass	Pass
Sample text	1.65:1	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 #213639 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #213639; }
.text { color: #213639; }
.border { border: 2px solid #213639; }
.transparent { background-color: rgb(33 54 57 / 50%); }
.gradient { background: linear-gradient(to right, #213639, #212a39); }

Background

Text color

Border

Similar colors

Closest common color name: Gunmetal.

Questions

What color is #213639?: #213639 is a very dark, desaturated cyan, closest to the named color Royal Neptune. It belongs to the gray family of colors.
What is the RGB value of #213639?: The RGB value is 33, 54, 57: 33 red, 54 green and 57 blue on a 0 to 255 scale.
What is the complementary color of #213639?: The complementary color is #392421, found by rotating the hue 180° on the color wheel.
Is black or white text better on #213639?: White text. Black text has a contrast ratio of 1.65:1 and white text 12.72:1. WCAG asks for at least 4.5:1 for normal text.