What color is #21878B?

#21878B is a dark, moderate cyan, closest to the named color Turkish Jade. It belongs to the teal family of colors.

What is the RGB value of #21878B?

The RGB value is 33, 135, 139: 33 red, 135 green and 139 blue on a 0 to 255 scale.

What is the complementary color of #21878B?

The complementary color is #8B2521, found by rotating the hue 180° on the color wheel.

Is black or white text better on #21878B?

Black text. Black text has a contrast ratio of 4.9:1 and white text 4.28:1. WCAG asks for at least 4.5:1 for normal text.

#21878B color

#21878B rgb(33, 135, 139)

Shades of teal

The hex color #21878B is a dark, moderate cyan.

In the RGB color model it is made of 12.9% red, 52.9% green and 54.5% blue (33, 135, 139).

Its hue angle is 182°, with 62% saturation and 34% lightness. For print, the CMYK equivalent is 76% cyan, 3% magenta, 0% yellow and 45% black.

The closest named color is Turkish Jade (#2B888D), a difference of 1 ΔE, which is barely visible.

Black text is the more readable choice on this background (contrast 4.9:1).

#21878B color codes

HEX	`#21878B`
RGB	`rgb(33, 135, 139)`
RGB percent	`rgb(12.9%, 52.9%, 54.5%)`
HSL	`hsl(182, 62%, 34%)`
HSV / HSB	`hsv(182, 76%, 55%)`
CMYK	`cmyk(76%, 3%, 0%, 45%)`
CIE LAB	`lab(51.28, -26.27, -10.34)`
CIE LCH	`lch(51.28, 28.24, 201.49)`
CIE XYZ	`xyz(13.949, 19.514, 27.452)`
Decimal	`2197387`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #21878B, 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 #21878B	Ratio	AA	AAA	AA large
Sample text	4.9:1	Pass	Fail	Pass
Sample text	4.28:1	Fail	Fail	Pass

#21878B as text on	Ratio	AA	AAA	AA large
Sample text	4.28:1	Fail	Fail	Pass
Sample text	4.9:1	Pass	Fail	Pass

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 #21878B looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #21878b; }
.text { color: #21878b; }
.border { border: 2px solid #21878b; }
.transparent { background-color: rgb(33 135 139 / 50%); }
.gradient { background: linear-gradient(to right, #21878b, #21528b); }

Background

Text color

Border

Similar colors

Questions

What color is #21878B?: #21878B is a dark, moderate cyan, closest to the named color Turkish Jade. It belongs to the teal family of colors.
What is the RGB value of #21878B?: The RGB value is 33, 135, 139: 33 red, 135 green and 139 blue on a 0 to 255 scale.
What is the complementary color of #21878B?: The complementary color is #8B2521, found by rotating the hue 180° on the color wheel.
Is black or white text better on #21878B?: Black text. Black text has a contrast ratio of 4.9:1 and white text 4.28:1. WCAG asks for at least 4.5:1 for normal text.