Information about #21B8EA color

#21B8EA color image

Basic facts about this digital color

The digital color #21B8EA is classified in the Register under the Cyan Color Family, with High Saturation and Light brightness. In numbers: rgb(33, 184, 234) (12.9% red, 72.2% green, 91.8% blue), or CMYK 79 / 20 / 0 / 8 for print. New to color codes? See our guide to RGB color codes.

The color #21B8EA reads as a strongly colored water-like cyan and carries an easy, daylight feel. 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 practically indistinguishable from COMS Blue (#21BDE5). Slightly further away sit be Supernormal. blue (#27BFF1) and failsam blue (#15B1EF).

The recipe behind #21B8EA is rgb(33, 184, 234), with blue as the dominant ingredient. On this background, black text reaches a 9.1:1 contrast ratio (passing WCAG AAA); white stays at 2.3:1. Out of 16,777,216 possible colors, #21B8EA is still unnamed — it can be claimed and named in The Official Register of Color Names.

#21B8EA color variations

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

#21B8EA 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 #21B8EA

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

Conversions between color systems and etc.

  • HEX#21B8EA
  • RGB33, 184, 234
  • CMYK79, 20, 0, 8
  • CSSrgb(33, 184, 234)
  • HSL195°, 83%, 52%
  • HSL Precise194.925°, 82.716%, 52.353%
  • HSV195°, 86%, 92%
  • HSB195°, 86%, 92%
  • Normalized R (0.0–1.0)0.129
  • Normalized G (0.0–1.0)0.722
  • Normalized B (0.0–1.0)0.918
  • GLSLvec3(0.129, 0.722, 0.918)
  • GLSL with alphavec4(0.129, 0.722, 0.918, 1.000)
  • HLSL / Metalfloat3(0.129, 0.722, 0.918)
  • Percentage of Red in RGB12.9%
  • Percentage of Green in RGB72.2%
  • Percentage of Blue in RGB91.8%
  • Color FamilyCyan
  • Saturation FamilyHigh Saturation
  • Lightness FamilyLight
  • HEX ID21B8EA
  • DECIMAL ID2210026
  • Name LengthThis color has no name
  • Seen by search & AI crawlers15 times
  • Counting from2025-01-01