What color is #21403F?

#21403F 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 #21403F?

The RGB value is 33, 64, 63: 33 red, 64 green and 63 blue on a 0 to 255 scale.

What is the complementary color of #21403F?

The complementary color is #402122, found by rotating the hue 180° on the color wheel.

Is black or white text better on #21403F?

White text. Black text has a contrast ratio of 1.87:1 and white text 11.23:1. WCAG asks for at least 4.5:1 for normal text.

#21403F color

#21403F rgb(33, 64, 63)

Shades of gray

The hex color #21403F is a very dark, desaturated cyan.

In the RGB color model it is made of 12.9% red, 25.1% green and 24.7% blue (33, 64, 63).

Its hue angle is 178°, with 32% saturation and 19% lightness. For print, the CMYK equivalent is 48% cyan, 0% magenta, 2% yellow and 75% black.

The closest named color is Emerald Forest (#224347), a difference of 3 ΔE, a small difference.

White text is the more readable choice on this background (contrast 11.23:1).

#21403F color codes

HEX	`#21403F`
RGB	`rgb(33, 64, 63)`
RGB percent	`rgb(12.9%, 25.1%, 24.7%)`
HSL	`hsl(178, 32%, 19%)`
HSV / HSB	`hsv(178, 48%, 25%)`
CMYK	`cmyk(48%, 0%, 2%, 75%)`
CIE LAB	`lab(24.79, -11.77, -2.99)`
CIE LCH	`lch(24.79, 12.15, 194.23)`
CIE XYZ	`xyz(3.357, 4.349, 5.364)`
Decimal	`2179135`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #21403F, 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 #21403F	Ratio	AA	AAA	AA large
Sample text	1.87:1	Fail	Fail	Fail
Sample text	11.23:1	Pass	Pass	Pass

#21403F as text on	Ratio	AA	AAA	AA large
Sample text	11.23:1	Pass	Pass	Pass
Sample text	1.87:1	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 #21403F looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #21403f; }
.text { color: #21403f; }
.border { border: 2px solid #21403f; }
.transparent { background-color: rgb(33 64 63 / 50%); }
.gradient { background: linear-gradient(to right, #21403f, #213240); }

Background

Text color

Border

Similar colors

Questions

What color is #21403F?: #21403F 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 #21403F?: The RGB value is 33, 64, 63: 33 red, 64 green and 63 blue on a 0 to 255 scale.
What is the complementary color of #21403F?: The complementary color is #402122, found by rotating the hue 180° on the color wheel.
Is black or white text better on #21403F?: White text. Black text has a contrast ratio of 1.87:1 and white text 11.23:1. WCAG asks for at least 4.5:1 for normal text.