Information about #02151B color

#02151B color image

Basic facts about this digital color

#02151B falls into the Cyan Color Family — Full Saturation, Very Dark brightness. The mix behind it: rgb(2, 21, 27) — 0.8% red, 8.2% green, 10.6% blue; the print equivalent is CMYK 10 / 2 / 0 / 89. Curious how these numbers work? Read our RGB color codes guide.

A pure, full-strength aqua cyan, #02151B keeps to the darkest edge of the palette. 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 Very Deep Azure (#000E1D). Slightly further away sit Very Deep Cyan (#001D1D) and Ornella Blue (#021224).

Technically, the mix leans on its blue channel (rgb(2, 21, 27)), which gives #02151B its character. On this background, white text reaches a 18.7:1 contrast ratio (passing WCAG AAA); black stays at 1.1:1. On paper it relies strongly on black ink (K:89), so proof dark layouts before a large print run. Out of 16,777,216 possible colors, #02151B is still unnamed — it can be claimed and named in The Official Register of Color Names.

#02151B color variations

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

#02151B 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 #02151B

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#02151B
  • RGB2, 21, 27
  • CMYK10, 2, 0, 89
  • CSSrgb(2, 21, 27)
  • HSL194°, 86%, 6%
  • HSL Precise194.4°, 86.207%, 5.686%
  • HSV194°, 93%, 11%
  • HSB194°, 93%, 11%
  • Normalized R (0.0–1.0)0.008
  • Normalized G (0.0–1.0)0.082
  • Normalized B (0.0–1.0)0.106
  • GLSLvec3(0.008, 0.082, 0.106)
  • GLSL with alphavec4(0.008, 0.082, 0.106, 1.000)
  • HLSL / Metalfloat3(0.008, 0.082, 0.106)
  • Percentage of Red in RGB0.8%
  • Percentage of Green in RGB8.2%
  • Percentage of Blue in RGB10.6%
  • Color FamilyCyan
  • Saturation FamilyFull Saturation
  • Lightness FamilyVery Dark
  • HEX ID02151B
  • DECIMAL ID136475
  • Name LengthThis color has no name
  • Seen by search & AI crawlers9 times
  • Counting from2025-01-01