Information about #A81B18 color

#A81B18 color image

Basic facts about this digital color

The digital color #A81B18 is classified in the Register under the Red Color Family, with High Saturation and Neutral brightness. In numbers: rgb(168, 27, 24) (65.9% red, 10.6% green, 9.4% blue), or CMYK 0 / 55 / 56 / 34 for print. Curious how these numbers work? Read our RGB color codes guide.

The color #A81B18 reads as a strongly colored earthy red and occupies the middle of the lightness scale. Expect to see shades like this in logos, highlights and anything that needs to be noticed first. In The Official Register of Color Names it is practically indistinguishable from Pulse (#A41D19). Slightly further away sit Carnelian (#B31B1B) and Del Toro (#B11D20).

The recipe behind #A81B18 is rgb(168, 27, 24), with red as the dominant ingredient. On this background, white text reaches a 7.4:1 contrast ratio (passing WCAG AAA); black stays at 2.8:1. Out of 16,777,216 possible colors, #A81B18 is still unnamed — it can be claimed and named in The Official Register of Color Names.

#A81B18 color variations

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

#A81B18 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 #A81B18

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

Pulse color link
Pulse

#A41D19

Carnelian color link
Carnelian

#B31B1B

Del Toro color link
Del Toro

#B11D20

Vintage Red color link
Vintage Red

#AF2413

Tabasco color link
Tabasco

#A02712

Firebrick color link
Firebrick

#B22222

Rambutan Red color link
Rambutan Red

#A72127

Red Cola color link
Red Cola

#B62020

Rufous color link
Rufous

#A81C07

Bonfire color link
Bonfire

#A62A20

Conversions between color systems and etc.

  • HEX#A81B18
  • RGB168, 27, 24
  • CMYK0, 55, 56, 34
  • CSSrgb(168, 27, 24)
  • HSL1°, 75%, 38%
  • HSL Precise1.25°, 75%, 37.647%
  • HSV1°, 86%, 66%
  • HSB1°, 86%, 66%
  • Normalized R (0.0–1.0)0.659
  • Normalized G (0.0–1.0)0.106
  • Normalized B (0.0–1.0)0.094
  • GLSLvec3(0.659, 0.106, 0.094)
  • GLSL with alphavec4(0.659, 0.106, 0.094, 1.000)
  • HLSL / Metalfloat3(0.659, 0.106, 0.094)
  • Percentage of Red in RGB65.9%
  • Percentage of Green in RGB10.6%
  • Percentage of Blue in RGB9.4%
  • Color FamilyRed
  • Saturation FamilyHigh Saturation
  • Lightness FamilyNeutral
  • HEX IDA81B18
  • DECIMAL ID11016984
  • Name LengthThis color has no name
  • Seen by search & AI crawlers9 times
  • Counting from2025-01-01