Information about #212F37 color

#212F37 color image

Basic facts about this digital color

The digital color #212F37 is classified in the Register under the Azure Color Family, with Mild Saturation and Dark brightness. Its exact recipe is rgb(33, 47, 55) — 12.9% red, 18.4% green, 21.6% blue — and for print it converts to CMYK 9 / 3 / 0 / 78. Curious how these numbers work? Read our RGB color codes guide.

A moderately toned sky-leaning azure, #212F37 leans clearly toward the dark side. Expect to see shades like this in night-mode interfaces and high-contrast pairings with light text. In The Official Register of Color Names it is a hair away from Dark Knight (#232D36). Its next-closest registered neighbors are Allegro (#242E3B) and Tornado (#272D3C).

The recipe behind #212F37 is rgb(33, 47, 55), with blue as the dominant ingredient. If you plan to put text on a #212F37 background, choose white — the contrast ratio is 13.8:1 (passing WCAG AAA), while black manages only 1.5:1. On paper it relies strongly on black ink (K:78), so proof dark layouts before a large print run. No one has named #212F37 so far. Register a name for it and it becomes a permanent record.

#212F37 color variations

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

#212F37 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 #212F37

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

Dark Knight color link
Dark Knight

#232D36

Allegro color link
Allegro

#242E3B

Tornado color link
Tornado

#272D3C

Ebony Clay color link
Ebony Clay

#26283B

Quarterback color link
Quarterback

#282B3C

Indian Ink color link
Indian Ink

#232732

Blue Night color link
Blue Night

#1F263B

Traccia color link
Traccia

#2A3335

Gunmetal color link
Gunmetal

#2A3439

Conversions between color systems and etc.

  • HEX#212F37
  • RGB33, 47, 55
  • CMYK9, 3, 0, 78
  • CSSrgb(33, 47, 55)
  • HSL202°, 25%, 17%
  • HSL Precise201.818°, 25%, 17.255%
  • HSV202°, 40%, 22%
  • HSB202°, 40%, 22%
  • Normalized R (0.0–1.0)0.129
  • Normalized G (0.0–1.0)0.184
  • Normalized B (0.0–1.0)0.216
  • GLSLvec3(0.129, 0.184, 0.216)
  • GLSL with alphavec4(0.129, 0.184, 0.216, 1.000)
  • HLSL / Metalfloat3(0.129, 0.184, 0.216)
  • Percentage of Red in RGB12.9%
  • Percentage of Green in RGB18.4%
  • Percentage of Blue in RGB21.6%
  • Color FamilyAzure
  • Saturation FamilyMild Saturation
  • Lightness FamilyDark
  • HEX ID212F37
  • DECIMAL ID2174775
  • Name LengthThis color has no name
  • Seen by search & AI crawlers11 times
  • Counting from2025-01-01