Information about #AC271B color

#AC271B color image

Basic facts about this digital color

In the Register's classification, #AC271B belongs to the Red Color Family, featuring High Saturation and Neutral brightness. In numbers: rgb(172, 39, 27) (67.5% red, 15.3% green, 10.6% blue), or CMYK 0 / 52 / 57 / 33 for print. New to color codes? See our guide to RGB color codes.

A energetic, saturated red, #AC271B holds a balanced mid-tone. Designers typically reach for tones like this for bold branding moments and attention-grabbing details. In The Official Register of Color Names it is practically indistinguishable from Bonfire (#A62A20). Its next-closest registered neighbors are Vintage Red (#AF2413) and Firebrick (#B22222).

Technically, the mix leans on its red channel (rgb(172, 39, 27)), which gives #AC271B its character. If you plan to put text on a #AC271B background, choose white — the contrast ratio is 6.9:1 (passing WCAG AA), while black manages only 3.1:1. Like most of the 16.7 million digital colors, this one is still waiting for a name — naming it takes a minute.

#AC271B color variations

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

#AC271B 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 #AC271B

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

Bonfire color link
Bonfire

#A62A20

Vintage Red color link
Vintage Red

#AF2413

Firebrick color link
Firebrick

#B22222

Del Toro color link
Del Toro

#B11D20

Pulse color link
Pulse

#A41D19

Red Cola color link
Red Cola

#B62020

Carnelian color link
Carnelian

#B31B1B

Rambutan Red color link
Rambutan Red

#A72127

Rustic Coral color link
Rustic Coral

#AE3415

Tabasco color link
Tabasco

#A02712

Upsdell Red color link
Upsdell Red

#AE2029

Conversions between color systems and etc.

  • HEX#AC271B
  • RGB172, 39, 27
  • CMYK0, 52, 57, 33
  • CSSrgb(172, 39, 27)
  • HSL5°, 73%, 39%
  • HSL Precise4.966°, 72.864%, 39.02%
  • HSV5°, 84%, 67%
  • HSB5°, 84%, 67%
  • Normalized R (0.0–1.0)0.675
  • Normalized G (0.0–1.0)0.153
  • Normalized B (0.0–1.0)0.106
  • GLSLvec3(0.675, 0.153, 0.106)
  • GLSL with alphavec4(0.675, 0.153, 0.106, 1.000)
  • HLSL / Metalfloat3(0.675, 0.153, 0.106)
  • Percentage of Red in RGB67.5%
  • Percentage of Green in RGB15.3%
  • Percentage of Blue in RGB10.6%
  • Color FamilyRed
  • Saturation FamilyHigh Saturation
  • Lightness FamilyNeutral
  • HEX IDAC271B
  • DECIMAL ID11282203
  • Name LengthThis color has no name
  • Seen by search & AI crawlers17 times
  • Counting from2025-01-01