Information about #21453E color

#21453E color image

Basic facts about this digital color

The digital color #21453E is classified in the Register under the Cyan Color Family, with Mild Saturation and Dark brightness. Its exact recipe is rgb(33, 69, 62) — 12.9% red, 27.1% green, 24.3% blue — and for print it converts to CMYK 14 / 0 / 3 / 73. New to color codes? See our guide to RGB color codes.

#21453E presents itself as a softly balanced water-like cyan — one that leans clearly toward the dark side. In practice it works well for night-mode interfaces and high-contrast pairings with light text. In The Official Register of Color Names it is practically indistinguishable from Zydeco (#20483F). Its next-closest registered neighbors are Tiki Tour (#234040) and Tile Green (#26433A).

The recipe behind #21453E is rgb(33, 69, 62), with green as the dominant ingredient. If you plan to put text on a #21453E background, choose white — the contrast ratio is 10.6:1 (passing WCAG AAA), while black manages only 2.0:1. On paper it relies strongly on black ink (K:73), so proof dark layouts before a large print run. Like most of the 16.7 million digital colors, this one is still waiting for a name — naming it takes a minute.

#21453E color variations

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

#21453E 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 #21453E

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

Zydeco color link
Zydeco

#20483F

Tiki Tour color link
Tiki Tour

#234040

Tile Green color link
Tile Green

#26433A

MSU Green color link
MSU Green

#18453B

Tiber color link
Tiber

#184343

Everglade color link
Everglade

#264334

Gable Green color link
Gable Green

#2C4641

Conversions between color systems and etc.

  • HEX#21453E
  • RGB33, 69, 62
  • CMYK14, 0, 3, 73
  • CSSrgb(33, 69, 62)
  • HSL168°, 35%, 20%
  • HSL Precise168.333°, 35.294%, 20%
  • HSV168°, 52%, 27%
  • HSB168°, 52%, 27%
  • Normalized R (0.0–1.0)0.129
  • Normalized G (0.0–1.0)0.271
  • Normalized B (0.0–1.0)0.243
  • GLSLvec3(0.129, 0.271, 0.243)
  • GLSL with alphavec4(0.129, 0.271, 0.243, 1.000)
  • HLSL / Metalfloat3(0.129, 0.271, 0.243)
  • Percentage of Red in RGB12.9%
  • Percentage of Green in RGB27.1%
  • Percentage of Blue in RGB24.3%
  • Color FamilyCyan
  • Saturation FamilyMild Saturation
  • Lightness FamilyDark
  • HEX ID21453E
  • DECIMAL ID2180414
  • Name LengthThis color has no name
  • Seen by search & AI crawlers15 times
  • Counting from2025-01-01