#21eeff

Color #21eeff

A vivid, highly saturated medium cyan.

Closest named color Aqua #00ffff · ΔE 12.1 Nearest Tailwind class cyan-300 #53eafd · ΔE 2.4

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Conversions

HEX

#21eeff

RGB

rgb(33, 238, 255)

HSL

hsl(184.6, 100%, 56.5%)

HSV / HSB

hsv(184.6, 87.1%, 100%)

CMYK

cmyk(87.1%, 6.7%, 0%, 0%)

LAB

lab(86.35, -39.58, -21.29)

LCH

lch(86.35, 44.94, 208.28)

OKLCH

oklch(86.7%, 0.1442, 204.29)

HWB

hwb(184.6, 12.9%, 0%)

Harmony colors

Complementary

#ff3221

Analogous

#21ffa1

#21eeff

#217fff

Triadic

#21eeff

#ff21ee

#eeff21

Split-complementary

#21eeff

#ff217f

#ffa121

Tetradic

#21eeff

#3221ff

#ff3221

#eeff21

Square

#21eeff

#a121ff

#ff3221

#7fff21

Shades

Color #21eeff mixed toward black.

#00def0

#00b1c0

#008590

#005960

#002c30

Tints

Color #21eeff mixed toward white.

#46f1ff

#6bf4ff

#90f6ff

#b5f9ff

#dafcff

Tones

Color #21eeff mixed toward gray.

#34deed

#46cfda

#59bfc8

#6bafb5

#7ea0a3

Accessibility

Aa White text on this color

1.42:1

Aa Black text on this color

14.74:1

Black text reads better on this background (14.74:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#a6a7fb · ΔE 34

Deuteranopia

#9c8dfa · ΔE 39.2

Tritanopia

#44f8f7 · ΔE 6

Achromatopsia

#d8d8d8 · ΔE 24.1

Left half is the original, right half is the simulated appearance. See all 8 vision types →

Code

CSS

background-color: #21eeff;

Tailwind (arbitrary value)

bg-[#21eeff]

Related colors

Powder Blue #b0e0e6

Cadet Blue #5f9ea0

Dark Turquoise #00ced1

Aqua #00ffff

Azure #f0ffff

Dark Cyan #008b8b

Frequently asked questions

#21eeff (#21eeff) is rgb(33, 238, 255) in RGB.

No, #21eeff is not web-safe. The nearest web-safe colors are among its tones and shades below.

Related tools

Colors

HEX to RGB Converter

Convert any HEX color code to its RGB and HSL equivalents, live, with copy-to-clipboard values.

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Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

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Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

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Build something with this color

Generate a full palette from #21eeff, or check how it holds up for accessibility.

Generate a palette → Check contrast