Information about #21D3AA color

#21D3AA color image

Basic facts about this digital color

In the Register's classification, #21D3AA belongs to the Cyan Color Family, featuring High Saturation and Light brightness. In numbers: rgb(33, 211, 170) (12.9% red, 82.7% green, 66.7% blue), or CMYK 70 / 0 / 16 / 17 for print. New to color codes? See our guide to RGB color codes.

A strongly colored water-like cyan, #21D3AA carries an easy, daylight feel. Designers typically reach for tones like this for accents, call-to-action elements and statement visuals. In The Official Register of Color Names it is very close to Dali (#20C29E). Slightly further away sit Tealish (#24BCA8) and Aqua Marine (#2EE8BB).

In RGB terms — rgb(33, 211, 170) — the green channel does the heavy lifting here. Accessibility-wise, black text works best on #21D3AA: 11.0:1 contrast (passing WCAG AAA) versus 1.9:1 for white. Like most of the 16.7 million digital colors, this one is still waiting for a name — naming it takes a minute.

#21D3AA color variations

View this color variations of tints, shades, tones and hues.

#21D3AA color harmonies

Color harmonies are pleasing color schemes created according to their position on a color wheel.

Complementary

Complementary color schemes are made by picking two opposite colors con the color wheel. They appear vibrant near to each other.

Complementary color schemes

Split complementary

Split complementary schemes are like complementary but they uses two adiacent colors of the complement. They are more flexible than complementary ones.

Split complementary color scheme

Analogous

Analogous color schemes are made by picking three colors that are next to each other on the color wheel. They are perceived as calm and serene.

Analogous color scheme

Triadic

Triadic color schemes are created by picking three colors equally spaced on the color wheel. They appear quite contrasted and multicolored.

Triadic color scheme

Tetradic

Tetradic color schemes are made form two couples of complementary colors in a rectangular shape on the color wheel.

Tetradic color scheme

Square

Square color schemes are like tetradic arranged in a square instead of rectangle. Colors appear even more contrasting.

Square color scheme

Nearest named colors to #21D3AA

The closest officially registered color names in the Register, ordered by similarity — your shade’s neighborhood is already being claimed.

Dali color link
Dali

#20C29E

Tealish color link
Tealish

#24BCA8

Aqua Marine color link
Aqua Marine

#2EE8BB

Aqua Green color link
Aqua Green

#12E193

AITriedPume color link
AITriedPume

#13B6A9

Greenblue color link
Greenblue

#23C48B

Neon Teal color link
Neon Teal

#00CAB1

Eucalyptus color link
Eucalyptus

#44D7A8

Amazonite color link
Amazonite

#00C4B0

Shamrock color link
Shamrock

#45CEA2

Conversions between color systems and etc.

  • HEX#21D3AA
  • RGB33, 211, 170
  • CMYK70, 0, 16, 17
  • CSSrgb(33, 211, 170)
  • HSL166°, 73%, 48%
  • HSL Precise166.18°, 72.951%, 47.843%
  • HSV166°, 84%, 83%
  • HSB166°, 84%, 83%
  • Normalized R (0.0–1.0)0.129
  • Normalized G (0.0–1.0)0.827
  • Normalized B (0.0–1.0)0.667
  • GLSLvec3(0.129, 0.827, 0.667)
  • GLSL with alphavec4(0.129, 0.827, 0.667, 1.000)
  • HLSL / Metalfloat3(0.129, 0.827, 0.667)
  • Percentage of Red in RGB12.9%
  • Percentage of Green in RGB82.7%
  • Percentage of Blue in RGB66.7%
  • Color FamilyCyan
  • Saturation FamilyHigh Saturation
  • Lightness FamilyLight
  • HEX ID21D3AA
  • DECIMAL ID2216874
  • Name LengthThis color has no name
  • Seen by search & AI crawlers14 times
  • Counting from2025-01-01