Information about #21B2A1 color

#21B2A1 color image

Basic facts about this digital color

In the Register's classification, #21B2A1 belongs to the Cyan Color Family, featuring High Saturation and Light brightness. In numbers: rgb(33, 178, 161) (12.9% red, 69.8% green, 63.1% blue), or CMYK 57 / 0 / 7 / 30 for print. Curious how these numbers work? Read our RGB color codes guide.

#21B2A1 presents itself as a strongly colored aqua cyan — one that feels open and friendly. It is a natural fit for bold branding moments and attention-grabbing details. In The Official Register of Color Names it is almost identical to Light Sea Green (#20B2AA). Its next-closest registered neighbors are Tealish (#24BCA8) and Dali (#20C29E).

Technically, the mix leans on its green channel (rgb(33, 178, 161)), which gives #21B2A1 its character. If you plan to put text on a #21B2A1 background, choose black — the contrast ratio is 7.9:1 (passing WCAG AAA), while white manages only 2.6:1. No one has named #21B2A1 so far. Register a name for it and it becomes a permanent record.

#21B2A1 color variations

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

#21B2A1 color tints

Tints look brighter, pastel, and less intense.
#21B2A1

Color has no name
#33D9C6

Color has no name
#66E3D4

Color has no name
#99ECE2

Color has no name
#CCF5F0

Color has no name
White

#FFFFFF

#21B2A1 color shades

Shades look darker, richer, and more solid.
#21B2A1

Color has no name
#198D7F

Color has no name
#136A5F

Color has no name
#0C463F

Color has no name
#06231F

Color has no name
Black

#000000

#21B2A1 color tones

Tones looks more sophisticated and complex than base colors.
#21B2A1

Color has no name
#30A99B

Color has no name
#42A095

Color has no name
#55968F

Color has no name
#698B87

Color has no name
Grey

#808080

#21B2A1 color hues

A hue refers to the basic neighbors of color and is variation of base color on the color wheel.
#2C20B0

Color has no name
#204EB0

Color has no name
#2087B0

Color has no name
#21B2A1

Color has no name
#20B066

Color has no name
#20B02C

Color has no name
#4EB020

Color has no name

#21B2A1 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
#21B2A1
#21B2A1

Color has no name

#B12031
#B12031

Color has no name

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
#21B2A1
#21B2A1

Color has no name

#B15820
#B15820

Color has no name

#B12079
#B12079

Color has no name

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
#2079B1
#2079B1

Color has no name

#21B2A1
#21B2A1

Color has no name

#20B158
#20B158

Color has no name

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
#21B2A1
#21B2A1

Color has no name

#A020B1
#A020B1

Color has no name

#B1A020
#B1A020

Color has no name

Tetradic

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

Tetradic color scheme
#21B2A1
#21B2A1

Color has no name

#2031B1
#2031B1

Color has no name

#B12031
#B12031

Color has no name

#B1A020
#B1A020

Color has no name

Square

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

Square color scheme
#21B2A1
#21B2A1

Color has no name

#5820B1
#5820B1

Color has no name

#B12031
#B12031

Color has no name

#79B120
#79B120

Color has no name

Nearest named colors to #21B2A1

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

Light Sea Green color link
Light Sea Green

#20B2AA

Tealish color link
Tealish

#24BCA8

Dali color link
Dali

#20C29E

AITriedPume color link
AITriedPume

#13B6A9

Spring Teal color link
Spring Teal

#0EA7A5

Mountain Meadow color link
Mountain Meadow

#30BA8F

Jeepers Creepers color link
Jeepers Creepers

#29A98B

Keppel color link
Keppel

#3AB09E

Jungle Green color link
Jungle Green

#29AB87

Greenblue color link
Greenblue

#23C48B

Java color link
Java

#259797

Boy Red color link
Boy Red

#0E9CA5

#21B2A1 color backgrounds & wallpapers

Download color wallpaper / background for your Desktop PC, Tablet or Mobile phone.

#21B2A1 color image #21B2A1 color ORCN HD wallpaper 3840x2160 (Desktop)
#21B2A1 color image #21B2A1 color ORCN HD wallpaper 1170x2532 (Mobile)
#21B2A1 color image #21B2A1 color solid HD wallpaper 3840x2160 (Desktop)
#21B2A1 color image #21B2A1 color solid HD wallpaper 1170x2532 (Mobile)

Conversions between color systems and etc.

  • HEX#21B2A1
  • RGB33, 178, 161
  • CMYK57, 0, 7, 30
  • HSL173°, 69%, 41%
  • HSL Precise172.966°, 68.72%, 41.373%
  • HSV173°, 81%, 70%
  • HSB173°, 81%, 70%
  • HEX ID21B2A1
  • DECIMAL ID2208417
  • Name LengthThis color has no name
  • Color Family (Hue)Cyan
  • Saturation FamilyHigh Saturation
  • Lightness FamilyLight
  • Percentage of Red in RGB12.9%
  • Percentage of Green in RGB69.8%
  • Percentage of Blue in RGB63.1%
  • This page visited6 times
  • Counting from2025-01-01

Copyright © 2021-2026 The Official Register of Color Names. All Rights Reserved.