Information about #21456B color

#21456B color image

Basic facts about this digital color

The digital color #21456B is classified in the Register under the Azure Color Family, with Moderate Saturation and Neutral brightness. In numbers: rgb(33, 69, 107) (12.9% red, 27.1% green, 42% blue), or CMYK 29 / 15 / 0 / 58 for print. Curious how these numbers work? Read our RGB color codes guide.

The color #21456B reads as a clearly saturated steel-blue azure and holds a balanced mid-tone. Expect to see shades like this in understated, calm designs that favor harmony over drama. In The Official Register of Color Names it is practically indistinguishable from Griffin Fjord (#274B6A). Its next-closest registered neighbors are Wet N Wild (#254375) and Wanaka (#284962).

The recipe behind #21456B is rgb(33, 69, 107), with blue as the dominant ingredient. If you plan to put text on a #21456B background, choose white — the contrast ratio is 9.9:1 (passing WCAG AAA), while black manages only 2.1:1. No one has named #21456B so far. Register a name for it and it becomes a permanent record.

#21456B color variations

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

#21456B 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 #21456B

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

Wanaka color link
Wanaka

#284962

Limitless color link
Limitless

#254B75

Shipshape color link
Shipshape

#21425F

JayHawk Blue color link
JayHawk Blue

#194F6E

Guru color link
Guru

#154C65

Capri color link
Capri

#30436A

Arapawa color link
Arapawa

#274A5D

Apollo Blue color link
Apollo Blue

#163968

Conversions between color systems and etc.

  • HEX#21456B
  • RGB33, 69, 107
  • CMYK29, 15, 0, 58
  • CSSrgb(33, 69, 107)
  • HSL211°, 53%, 27%
  • HSL Precise210.811°, 52.857%, 27.451%
  • HSV211°, 69%, 42%
  • HSB211°, 69%, 42%
  • Normalized R (0.0–1.0)0.129
  • Normalized G (0.0–1.0)0.271
  • Normalized B (0.0–1.0)0.420
  • GLSLvec3(0.129, 0.271, 0.420)
  • GLSL with alphavec4(0.129, 0.271, 0.420, 1.000)
  • HLSL / Metalfloat3(0.129, 0.271, 0.420)
  • Percentage of Red in RGB12.9%
  • Percentage of Green in RGB27.1%
  • Percentage of Blue in RGB42%
  • Color FamilyAzure
  • Saturation FamilyModerate Saturation
  • Lightness FamilyNeutral
  • HEX ID21456B
  • DECIMAL ID2180459
  • Name LengthThis color has no name
  • Seen by search & AI crawlers15 times
  • Counting from2025-01-01