Information about #21A38F color

#21A38F color image

Basic facts about this digital color

#21A38F falls into the Cyan Color Family — High Saturation, Neutral brightness. Its exact recipe is rgb(33, 163, 143) — 12.9% red, 63.9% green, 56.1% blue — and for print it converts to CMYK 80 / 0 / 12 / 36. New to color codes? See our guide to RGB color codes.

The color #21A38F reads as a vivid, lively cyan and occupies the middle of the lightness scale. Designers typically reach for tones like this for logos, highlights and anything that needs to be noticed first. In The Official Register of Color Names it is a near neighbor of Jeepers Creepers (#29A98B). Slightly further away sit Jungle Green (#29AB87) and Celeritas (#299792).

Technically, the mix leans on its green channel (rgb(33, 163, 143)), which gives #21A38F its character. On this background, black text reaches a 6.7:1 contrast ratio (passing WCAG AA); white stays at 3.1:1. #21A38F has no official name yet. If this shade means something to you, you can be the one to name it.

#21A38F color variations

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

#21A38F 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 #21A38F

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

Jungle Green color link
Jungle Green

#29AB87

Celeritas color link
Celeritas

#299792

Java color link
Java

#259797

Zomp color link
Zomp

#39A78E

Gossamer color link
Gossamer

#399F86

ChaosDragon color link
ChaosDragon

#139084

Niagara color link
Niagara

#06A189

Dark Seafoam color link
Dark Seafoam

#1FB57A

Bluey Green color link
Bluey Green

#2BB179

Conversions between color systems and etc.

  • HEX#21A38F
  • RGB33, 163, 143
  • CMYK80, 0, 12, 36
  • CSSrgb(33, 163, 143)
  • HSL171°, 66%, 38%
  • HSL Precise170.769°, 66.327%, 38.431%
  • HSV171°, 80%, 64%
  • HSB171°, 80%, 64%
  • Normalized R (0.0–1.0)0.129
  • Normalized G (0.0–1.0)0.639
  • Normalized B (0.0–1.0)0.561
  • GLSLvec3(0.129, 0.639, 0.561)
  • GLSL with alphavec4(0.129, 0.639, 0.561, 1.000)
  • HLSL / Metalfloat3(0.129, 0.639, 0.561)
  • Percentage of Red in RGB12.9%
  • Percentage of Green in RGB63.9%
  • Percentage of Blue in RGB56.1%
  • Color FamilyCyan
  • Saturation FamilyHigh Saturation
  • Lightness FamilyNeutral
  • HEX ID21A38F
  • DECIMAL ID2204559
  • Name LengthThis color has no name
  • Seen by search & AI crawlers5 times
  • Counting from2025-01-01