Information about #213437 color

#213437 color image

Basic facts about this digital color

In the Register's classification, #213437 belongs to the Cyan Color Family, featuring Mild Saturation and Dark brightness. In numbers: rgb(33, 52, 55) (12.9% red, 20.4% green, 21.6% blue), or CMYK 9 / 1 / 0 / 78 for print. Curious how these numbers work? Read our RGB color codes guide.

#213437 presents itself as a softly balanced cyan — one that carries a shadowy depth. It is a natural fit for night-mode interfaces and high-contrast pairings with light text. In The Official Register of Color Names it is almost identical to Goryeo Storeroom (#203838). Nearby in the Register you will also find Dark Knight (#232D36) and Dark Slate Grey (#25383C).

In RGB terms — rgb(33, 52, 55) — the blue channel does the heavy lifting here. If you plan to put text on a #213437 background, choose white — the contrast ratio is 13.0:1 (passing WCAG AAA), while black manages only 1.6:1. For print, note the heavy black component (K:78) — ink coverage matters with tones this deep. #213437 has no official name yet. If this shade means something to you, you can be the one to name it.

#213437 color variations

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

#213437 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 #213437

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

Nordic color link
Nordic

#1D393C

Gunmetal color link
Gunmetal

#2A3439

Traccia color link
Traccia

#2A3335

Elephant color link
Elephant

#243640

Raglan color link
Raglan

#293331

Ivy Green color link
Ivy Green

#23352D

Tornado color link
Tornado

#272D3C

Iron Storage color link
Iron Storage

#2B3736

Conversions between color systems and etc.

  • HEX#213437
  • RGB33, 52, 55
  • CMYK9, 1, 0, 78
  • CSSrgb(33, 52, 55)
  • HSL188°, 25%, 17%
  • HSL Precise188.182°, 25%, 17.255%
  • HSV188°, 40%, 22%
  • HSB188°, 40%, 22%
  • Normalized R (0.0–1.0)0.129
  • Normalized G (0.0–1.0)0.204
  • Normalized B (0.0–1.0)0.216
  • GLSLvec3(0.129, 0.204, 0.216)
  • GLSL with alphavec4(0.129, 0.204, 0.216, 1.000)
  • HLSL / Metalfloat3(0.129, 0.204, 0.216)
  • Percentage of Red in RGB12.9%
  • Percentage of Green in RGB20.4%
  • Percentage of Blue in RGB21.6%
  • Color FamilyCyan
  • Saturation FamilyMild Saturation
  • Lightness FamilyDark
  • HEX ID213437
  • DECIMAL ID2176055
  • Name LengthThis color has no name
  • Seen by search & AI crawlers9 times
  • Counting from2025-01-01