Information about #212D2D color

#212D2D color image

Basic facts about this digital color

The digital color #212D2D is classified in the Register under the Cyan Color Family, with Low Saturation and Dark brightness. In numbers: rgb(33, 45, 45) (12.9% red, 17.6% green, 17.6% blue), or CMYK 5 / 0 / 0 / 82 for print. New to color codes? See our guide to RGB color codes.

The color #212D2D reads as a calm, restrained water-like cyan and carries a shadowy depth. Designers typically reach for tones like this for night-mode interfaces and high-contrast pairings with light text. In The Official Register of Color Names it is practically indistinguishable from Charleston Green (#232B2B). Nearby in the Register you will also find Cinder (#242A2E) and Kermadec (#1D2C2A).

The recipe behind #212D2D is rgb(33, 45, 45), with green as the dominant ingredient. If you plan to put text on a #212D2D background, choose white — the contrast ratio is 14.2:1 (passing WCAG AAA), while black manages only 1.5:1. On paper it relies strongly on black ink (K:82), so proof dark layouts before a large print run. #212D2D has no official name yet. If this shade means something to you, you can be the one to name it.

#212D2D color variations

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

#212D2D 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 #212D2D

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

Cinder color link
Cinder

#242A2E

Kermadec color link
Kermadec

#1D2C2A

Black Pearl color link
Black Pearl

#1E272C

Wine Trail color link
Wine Trail

#27292D

Shadowland color link
Shadowland

#26272C

Indian Ink color link
Indian Ink

#232732

Ivy Green color link
Ivy Green

#23352D

Conversions between color systems and etc.

  • HEX#212D2D
  • RGB33, 45, 45
  • CMYK5, 0, 0, 82
  • CSSrgb(33, 45, 45)
  • HSL180°, 15%, 15%
  • HSL Precise180°, 15.385%, 15.294%
  • HSV180°, 27%, 18%
  • HSB180°, 27%, 18%
  • Normalized R (0.0–1.0)0.129
  • Normalized G (0.0–1.0)0.176
  • Normalized B (0.0–1.0)0.176
  • GLSLvec3(0.129, 0.176, 0.176)
  • GLSL with alphavec4(0.129, 0.176, 0.176, 1.000)
  • HLSL / Metalfloat3(0.129, 0.176, 0.176)
  • Percentage of Red in RGB12.9%
  • Percentage of Green in RGB17.6%
  • Percentage of Blue in RGB17.6%
  • Color FamilyCyan
  • Saturation FamilyLow Saturation
  • Lightness FamilyDark
  • HEX ID212D2D
  • DECIMAL ID2174253
  • Name LengthThis color has no name
  • Seen by search & AI crawlers13 times
  • Counting from2025-01-01