Information about #21997B color

#21997B color image

Basic facts about this digital color

In the Register's classification, #21997B belongs to the Cyan Color Family, featuring High Saturation and Neutral brightness. In numbers: rgb(33, 153, 123) (12.9% red, 60% green, 48.2% blue), or CMYK 47 / 0 / 12 / 40 for print. New to color codes? See our guide to RGB color codes.

#21997B presents itself as a energetic, saturated cyan — one that sits comfortably between light and dark. In practice it works well for bold branding moments and attention-grabbing details. In The Official Register of Color Names it is just a few steps away from Soylent Green (#218B76). Nearby in the Register you will also find Illuminating Emerald (#319177) and ChaosDragon (#139084).

In RGB terms — rgb(33, 153, 123) — the green channel does the heavy lifting here. If you plan to put text on a #21997B background, choose black — the contrast ratio is 5.9:1 (passing WCAG AA), while white manages only 3.6:1. #21997B has no official name yet. If this shade means something to you, you can be the one to name it.

#21997B color variations

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

#21997B 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 #21997B

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#21997B
  • RGB33, 153, 123
  • CMYK47, 0, 12, 40
  • CSSrgb(33, 153, 123)
  • HSL165°, 65%, 36%
  • HSL Precise165°, 64.516%, 36.471%
  • HSV165°, 78%, 60%
  • HSB165°, 78%, 60%
  • Normalized R (0.0–1.0)0.129
  • Normalized G (0.0–1.0)0.600
  • Normalized B (0.0–1.0)0.482
  • GLSLvec3(0.129, 0.600, 0.482)
  • GLSL with alphavec4(0.129, 0.600, 0.482, 1.000)
  • HLSL / Metalfloat3(0.129, 0.600, 0.482)
  • Percentage of Red in RGB12.9%
  • Percentage of Green in RGB60%
  • Percentage of Blue in RGB48.2%
  • Color FamilyCyan
  • Saturation FamilyHigh Saturation
  • Lightness FamilyNeutral
  • HEX ID21997B
  • DECIMAL ID2201979
  • Name LengthThis color has no name
  • This page visited297 times
  • Counting from2025-01-01