What color is #21424B?

#21424B is a dark, desaturated cyan, closest to the named color Sunken Harbour. It belongs to the gray family of colors.

What is the RGB value of #21424B?

The RGB value is 33, 66, 75: 33 red, 66 green and 75 blue on a 0 to 255 scale.

What is the complementary color of #21424B?

The complementary color is #4B2A21, found by rotating the hue 180° on the color wheel.

Is black or white text better on #21424B?

White text. Black text has a contrast ratio of 1.95:1 and white text 10.79:1. WCAG asks for at least 4.5:1 for normal text.

#21424B color

#21424B rgb(33, 66, 75)

Shades of gray

The hex color #21424B is a dark, desaturated cyan.

In the RGB color model it is made of 12.9% red, 25.9% green and 29.4% blue (33, 66, 75).

Its hue angle is 193°, with 39% saturation and 21% lightness. For print, the CMYK equivalent is 56% cyan, 12% magenta, 0% yellow and 71% black.

The closest named color is Sunken Harbour (#1C3D44), a difference of 2 ΔE, which is barely visible.

White text is the more readable choice on this background (contrast 10.79:1).

#21424B color codes

HEX	`#21424B`
RGB	`rgb(33, 66, 75)`
RGB percent	`rgb(12.9%, 25.9%, 29.4%)`
HSL	`hsl(193, 39%, 21%)`
HSV / HSB	`hsv(193, 56%, 29%)`
CMYK	`cmyk(56%, 12%, 0%, 71%)`
CIE LAB	`lab(25.94, -9.15, -9.17)`
CIE LCH	`lch(25.94, 12.96, 225.07)`
CIE XYZ	`xyz(3.845, 4.727, 7.365)`
Decimal	`2179659`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #21424B, 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 #21424B	Ratio	AA	AAA	AA large
Sample text	1.95:1	Fail	Fail	Fail
Sample text	10.79:1	Pass	Pass	Pass

#21424B as text on	Ratio	AA	AAA	AA large
Sample text	10.79:1	Pass	Pass	Pass
Sample text	1.95:1	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 #21424B looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #21424b; }
.text { color: #21424b; }
.border { border: 2px solid #21424b; }
.transparent { background-color: rgb(33 66 75 / 50%); }
.gradient { background: linear-gradient(to right, #21424b, #212d4b); }

Background

Text color

Border

Similar colors

Closest common color name: Charcoal.

Questions

What color is #21424B?: #21424B is a dark, desaturated cyan, closest to the named color Sunken Harbour. It belongs to the gray family of colors.
What is the RGB value of #21424B?: The RGB value is 33, 66, 75: 33 red, 66 green and 75 blue on a 0 to 255 scale.
What is the complementary color of #21424B?: The complementary color is #4B2A21, found by rotating the hue 180° on the color wheel.
Is black or white text better on #21424B?: White text. Black text has a contrast ratio of 1.95:1 and white text 10.79:1. WCAG asks for at least 4.5:1 for normal text.