Information about #02181B color

#02181B color image

Basic facts about this digital color

In the Register's classification, #02181B belongs to the Cyan Color Family, featuring Full Saturation and Very Dark brightness. In numbers: rgb(2, 24, 27) (0.8% red, 9.4% green, 10.6% blue), or CMYK 10 / 1 / 0 / 89 for print. Curious how these numbers work? Read our RGB color codes guide.

#02181B presents itself as a intensely saturated aqua cyan — one that lives deep in the shadows. 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 Very Deep Cyan (#001D1D). Nearby in the Register you will also find Very Deep Azure (#000E1D) and Ornella Blue (#021224).

The recipe behind #02181B is rgb(2, 24, 27), with blue as the dominant ingredient. If you plan to put text on a #02181B background, choose white — the contrast ratio is 18.3:1 (passing WCAG AAA), while black manages only 1.1:1. For print, note the heavy black component (K:89) — ink coverage matters with tones this deep. Out of 16,777,216 possible colors, #02181B is still unnamed — it can be claimed and named in The Official Register of Color Names.

#02181B color variations

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

#02181B 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 #02181B

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

Conversions between color systems and etc.

  • HEX#02181B
  • RGB2, 24, 27
  • CMYK10, 1, 0, 89
  • CSSrgb(2, 24, 27)
  • HSL187°, 86%, 6%
  • HSL Precise187.2°, 86.207%, 5.686%
  • HSV187°, 93%, 11%
  • HSB187°, 93%, 11%
  • Normalized R (0.0–1.0)0.008
  • Normalized G (0.0–1.0)0.094
  • Normalized B (0.0–1.0)0.106
  • GLSLvec3(0.008, 0.094, 0.106)
  • GLSL with alphavec4(0.008, 0.094, 0.106, 1.000)
  • HLSL / Metalfloat3(0.008, 0.094, 0.106)
  • Percentage of Red in RGB0.8%
  • Percentage of Green in RGB9.4%
  • Percentage of Blue in RGB10.6%
  • Color FamilyCyan
  • Saturation FamilyFull Saturation
  • Lightness FamilyVery Dark
  • HEX ID02181B
  • DECIMAL ID137243
  • Name LengthThis color has no name
  • Seen by search & AI crawlers21 times
  • Counting from2025-01-01