Information about #AC1F21 color

#AC1F21 color image

Basic facts about this digital color

#AC1F21 falls into the Red Color FamilyHigh Saturation, Neutral brightness. The mix behind it: rgb(172, 31, 33) — 67.5% red, 12.2% green, 12.9% blue; the print equivalent is CMYK 0 / 55 / 55 / 33. Curious how these numbers work? Read our RGB color codes guide.

#AC1F21 presents itself as a strongly colored earthy red — one that holds a balanced mid-tone. It is a natural fit for accents, call-to-action elements and statement visuals. In The Official Register of Color Names it is a hair away from Del Toro (#B11D20). Its next-closest registered neighbors are Firebrick (#B22222) and Netherlands Red (#AE1C28).

In RGB terms — rgb(172, 31, 33) — the red channel does the heavy lifting here. Accessibility-wise, white text works best on #AC1F21: 7.1:1 contrast (passing WCAG AAA) versus 3.0:1 for black. #AC1F21 has no official name yet. If this shade means something to you, you can be the one to name it.

#AC1F21 color variations

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

#AC1F21 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 #AC1F21

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

Del Toro color link
Del Toro

#B11D20

Firebrick color link
Firebrick

#B22222

Rambutan Red color link
Rambutan Red

#A72127

Upsdell Red color link
Upsdell Red

#AE2029

Carnelian color link
Carnelian

#B31B1B

Red Cola color link
Red Cola

#B62020

Pulse color link
Pulse

#A41D19

Bonfire color link
Bonfire

#A62A20

Wine Red color link
Wine Red

#B11226

Conversions between color systems and etc.

  • HEX#AC1F21
  • RGB172, 31, 33
  • CMYK0, 55, 55, 33
  • CSSrgb(172, 31, 33)
  • HSL359°, 69%, 40%
  • HSL Precise359.149°, 69.458%, 39.804%
  • HSV359°, 82%, 67%
  • HSB359°, 82%, 67%
  • Normalized R (0.0–1.0)0.675
  • Normalized G (0.0–1.0)0.122
  • Normalized B (0.0–1.0)0.129
  • GLSLvec3(0.675, 0.122, 0.129)
  • GLSL with alphavec4(0.675, 0.122, 0.129, 1.000)
  • HLSL / Metalfloat3(0.675, 0.122, 0.129)
  • Percentage of Red in RGB67.5%
  • Percentage of Green in RGB12.2%
  • Percentage of Blue in RGB12.9%
  • Color FamilyRed
  • Saturation FamilyHigh Saturation
  • Lightness FamilyNeutral
  • HEX IDAC1F21
  • DECIMAL ID11280161
  • Name LengthThis color has no name
  • Seen by search & AI crawlers13 times
  • Counting from2025-01-01