What color is #21F3EC?

#21F3EC is a vivid cyan, closest to the named color Kaltes Klares Wasser. It belongs to the teal family of colors.

What is the RGB value of #21F3EC?

The RGB value is 33, 243, 236: 33 red, 243 green and 236 blue on a 0 to 255 scale.

What is the complementary color of #21F3EC?

The complementary color is #F32128, found by rotating the hue 180° on the color wheel.

Is black or white text better on #21F3EC?

Black text. Black text has a contrast ratio of 15.1:1 and white text 1.39:1. WCAG asks for at least 4.5:1 for normal text.

#21F3EC color

#21F3EC rgb(33, 243, 236)

Shades of teal

The hex color #21F3EC is a vivid cyan.

In the RGB color model it is made of 12.9% red, 95.3% green and 92.5% blue (33, 243, 236).

Its hue angle is 178°, with 90% saturation and 54% lightness. For print, the CMYK equivalent is 86% cyan, 0% magenta, 3% yellow and 5% black.

The closest named color is Kaltes Klares Wasser (#0FFEF9), a difference of 2.4 ΔE, a small difference.

Black text is the more readable choice on this background (contrast 15.1:1).

#21F3EC color codes

HEX	`#21F3EC`
RGB	`rgb(33, 243, 236)`
RGB percent	`rgb(12.9%, 95.3%, 92.5%)`
HSL	`hsl(178, 90%, 54%)`
HSV / HSB	`hsv(178, 86%, 95%)`
CMYK	`cmyk(86%, 0%, 3%, 5%)`
CIE LAB	`lab(87.23, -47.3, -10.01)`
CIE LCH	`lch(87.23, 48.35, 191.95)`
CIE XYZ	`xyz(47.811, 70.474, 90.424)`
Decimal	`2225132`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #21F3EC, 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 #21F3EC	Ratio	AA	AAA	AA large
Sample text	15.1:1	Pass	Pass	Pass
Sample text	1.39:1	Fail	Fail	Fail

#21F3EC as text on	Ratio	AA	AAA	AA large
Sample text	1.39:1	Fail	Fail	Fail
Sample text	15.1:1	Pass	Pass	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 #21F3EC looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #21f3ec; }
.text { color: #21f3ec; }
.border { border: 2px solid #21f3ec; }
.transparent { background-color: rgb(33 243 236 / 50%); }
.gradient { background: linear-gradient(to right, #21f3ec, #2191f3); }

Background

Text color

Border

Similar colors

Questions

What color is #21F3EC?: #21F3EC is a vivid cyan, closest to the named color Kaltes Klares Wasser. It belongs to the teal family of colors.
What is the RGB value of #21F3EC?: The RGB value is 33, 243, 236: 33 red, 243 green and 236 blue on a 0 to 255 scale.
What is the complementary color of #21F3EC?: The complementary color is #F32128, found by rotating the hue 180° on the color wheel.
Is black or white text better on #21F3EC?: Black text. Black text has a contrast ratio of 15.1:1 and white text 1.39:1. WCAG asks for at least 4.5:1 for normal text.