Information about #1B0305 color

#1B0305 color image

Basic facts about this digital color

#1B0305 falls into the Red Color Family — High Saturation, Very Dark brightness. Its exact recipe is rgb(27, 3, 5) — 10.6% red, 1.2% green, 2% blue — and for print it converts to CMYK 0 / 9 / 9 / 89. Curious how these numbers work? Read our RGB color codes guide.

#1B0305 is a strongly colored earthy red that keeps to the darkest edge of the palette. It is a natural fit for moody backdrops, typography on light surfaces and premium packaging. In The Official Register of Color Names it is practically indistinguishable from Very Dark Brown (#1D0200). Slightly further away sit Very Deep Reddish Brown (#1D0000) and Very Deep Rose (#1D000E).

In RGB terms — rgb(27, 3, 5) — the red channel does the heavy lifting here. On this background, white text reaches a 19.8:1 contrast ratio (passing WCAG AAA); black stays at 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, #1B0305 is still unnamed — it can be claimed and named in The Official Register of Color Names.

#1B0305 color variations

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

#1B0305 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 #1B0305

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#1B0305
  • RGB27, 3, 5
  • CMYK0, 9, 9, 89
  • CSSrgb(27, 3, 5)
  • HSL355°, 80%, 6%
  • HSL Precise355°, 80%, 5.882%
  • HSV355°, 89%, 11%
  • HSB355°, 89%, 11%
  • Normalized R (0.0–1.0)0.106
  • Normalized G (0.0–1.0)0.012
  • Normalized B (0.0–1.0)0.020
  • GLSLvec3(0.106, 0.012, 0.020)
  • GLSL with alphavec4(0.106, 0.012, 0.020, 1.000)
  • HLSL / Metalfloat3(0.106, 0.012, 0.020)
  • Percentage of Red in RGB10.6%
  • Percentage of Green in RGB1.2%
  • Percentage of Blue in RGB2%
  • Color FamilyRed
  • Saturation FamilyHigh Saturation
  • Lightness FamilyVery Dark
  • HEX ID1B0305
  • DECIMAL ID1770245
  • Name LengthThis color has no name
  • Seen by search & AI crawlers18 times
  • Counting from2025-01-01