Information about #21456E color

#21456E color image

Basic facts about this digital color

In the Register's classification, #21456E belongs to the Azure Color Family, featuring Moderate Saturation and Neutral brightness. In numbers: rgb(33, 69, 110) (12.9% red, 27.1% green, 43.1% blue), or CMYK 30 / 16 / 0 / 57 for print. New to color codes? See our guide to RGB color codes.

A pleasantly vivid azure, #21456E occupies the middle of the lightness scale. Designers typically reach for tones like this for versatile mid-ground roles, from cards to secondary buttons. In The Official Register of Color Names it is practically indistinguishable from Wet N Wild (#254375). Slightly further away sit Griffin Fjord (#274B6A) and Limitless (#254B75).

Technically, the mix leans on its blue channel (rgb(33, 69, 110)), which gives #21456E its character. Accessibility-wise, white text works best on #21456E: 9.8:1 contrast (passing WCAG AAA) versus 2.1:1 for black. No one has named #21456E so far. Register a name for it and it becomes a permanent record.

#21456E color variations

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

#21456E 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 #21456E

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

Wet N Wild color link
Wet N Wild

#254375

Limitless color link
Limitless

#254B75

JayHawk Blue color link
JayHawk Blue

#194F6E

Wanaka color link
Wanaka

#284962

Shipshape color link
Shipshape

#21425F

Capri color link
Capri

#30436A

Astronaut color link
Astronaut

#283A77

Guru color link
Guru

#154C65

Apollo Blue color link
Apollo Blue

#163968

Conversions between color systems and etc.

  • HEX#21456E
  • RGB33, 69, 110
  • CMYK30, 16, 0, 57
  • CSSrgb(33, 69, 110)
  • HSL212°, 54%, 28%
  • HSL Precise211.948°, 53.846%, 28.039%
  • HSV212°, 70%, 43%
  • HSB212°, 70%, 43%
  • Normalized R (0.0–1.0)0.129
  • Normalized G (0.0–1.0)0.271
  • Normalized B (0.0–1.0)0.431
  • GLSLvec3(0.129, 0.271, 0.431)
  • GLSL with alphavec4(0.129, 0.271, 0.431, 1.000)
  • HLSL / Metalfloat3(0.129, 0.271, 0.431)
  • Percentage of Red in RGB12.9%
  • Percentage of Green in RGB27.1%
  • Percentage of Blue in RGB43.1%
  • Color FamilyAzure
  • Saturation FamilyModerate Saturation
  • Lightness FamilyNeutral
  • HEX ID21456E
  • DECIMAL ID2180462
  • Name LengthThis color has no name
  • Seen by search & AI crawlers15 times
  • Counting from2025-01-01