Information about #212537 color

#212537 color image

Basic facts about this digital color

#212537 falls into the Blue Color Family — Mild Saturation, Dark brightness. The mix behind it: rgb(33, 37, 55) — 12.9% red, 14.5% green, 21.6% blue; the print equivalent is CMYK 9 / 7 / 0 / 78. Curious how these numbers work? Read our RGB color codes guide.

A mildly saturated blue, #212537 stays on the darker end of the scale. Expect to see shades like this in moody backdrops, typography on light surfaces and premium packaging. In The Official Register of Color Names it is almost identical to Midnight Express (#21263A). Slightly further away sit Blue Night (#1F263B) and Indian Ink (#232732).

In RGB terms — rgb(33, 37, 55) — the blue channel does the heavy lifting here. On this background, white text reaches a 15.2:1 contrast ratio (passing WCAG AAA); black stays at 1.4:1. On paper it relies strongly on black ink (K:78), so proof dark layouts before a large print run. #212537 has no official name yet. If this shade means something to you, you can be the one to name it.

#212537 color variations

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

#212537 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 #212537

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

Blue Night color link
Blue Night

#1F263B

Indian Ink color link
Indian Ink

#232732

Nite Life color link
Nite Life

#1D2134

Ebony Clay color link
Ebony Clay

#26283B

Bullitt color link
Bullitt

#27253C

Dark Knight color link
Dark Knight

#232D36

Dark color link
Dark

#1B2431

Allegro color link
Allegro

#242E3B

Quarterback color link
Quarterback

#282B3C

Cinder color link
Cinder

#242A2E

Conversions between color systems and etc.

  • HEX#212537
  • RGB33, 37, 55
  • CMYK9, 7, 0, 78
  • CSSrgb(33, 37, 55)
  • HSL229°, 25%, 17%
  • HSL Precise229.091°, 25%, 17.255%
  • HSV229°, 40%, 22%
  • HSB229°, 40%, 22%
  • Normalized R (0.0–1.0)0.129
  • Normalized G (0.0–1.0)0.145
  • Normalized B (0.0–1.0)0.216
  • GLSLvec3(0.129, 0.145, 0.216)
  • GLSL with alphavec4(0.129, 0.145, 0.216, 1.000)
  • HLSL / Metalfloat3(0.129, 0.145, 0.216)
  • Percentage of Red in RGB12.9%
  • Percentage of Green in RGB14.5%
  • Percentage of Blue in RGB21.6%
  • Color FamilyBlue
  • Saturation FamilyMild Saturation
  • Lightness FamilyDark
  • HEX ID212537
  • DECIMAL ID2172215
  • Name LengthThis color has no name
  • Seen by search & AI crawlers11 times
  • Counting from2025-01-01