Information about #B5121F color

#B5121F color image

Basic facts about this digital color

The digital color #B5121F is classified in the Register under the Red Color Family, with High Saturation and Neutral brightness. Its exact recipe is rgb(181, 18, 31) — 71% red, 7.1% green, 12.2% blue — and for print it converts to CMYK 0 / 64 / 59 / 29. Curious how these numbers work? Read our RGB color codes guide.

#B5121F presents itself as a energetic, saturated red — one that sits comfortably between light and dark. It is a natural fit for bold branding moments and attention-grabbing details. In The Official Register of Color Names it is practically indistinguishable from Wine Red (#B11226). Nearby in the Register you will also find Murdoc Red (#BC161C) and Cadmium Purple (#B60C26).

In RGB terms — rgb(181, 18, 31) — the red channel does the heavy lifting here. If you plan to put text on a #B5121F background, choose white — the contrast ratio is 6.8:1 (passing WCAG AA), while black manages only 3.1:1. #B5121F has no official name yet. If this shade means something to you, you can be the one to name it.

#B5121F color variations

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

#B5121F 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 #B5121F

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

Wine Red color link
Wine Red

#B11226

Murdoc Red color link
Murdoc Red

#BC161C

Carnelian color link
Carnelian

#B31B1B

Youtube Red color link
Youtube Red

#B2071D

Del Toro color link
Del Toro

#B11D20

Red Pepper color link
Red Pepper

#BB112A

Red Cola color link
Red Cola

#B62020

Firebrick color link
Firebrick

#B22222

Conversions between color systems and etc.

  • HEX#B5121F
  • RGB181, 18, 31
  • CMYK0, 64, 59, 29
  • CSSrgb(181, 18, 31)
  • HSL355°, 82%, 39%
  • HSL Precise355.215°, 81.91%, 39.02%
  • HSV355°, 90%, 71%
  • HSB355°, 90%, 71%
  • Normalized R (0.0–1.0)0.710
  • Normalized G (0.0–1.0)0.071
  • Normalized B (0.0–1.0)0.122
  • GLSLvec3(0.710, 0.071, 0.122)
  • GLSL with alphavec4(0.710, 0.071, 0.122, 1.000)
  • HLSL / Metalfloat3(0.710, 0.071, 0.122)
  • Percentage of Red in RGB71%
  • Percentage of Green in RGB7.1%
  • Percentage of Blue in RGB12.2%
  • Color FamilyRed
  • Saturation FamilyHigh Saturation
  • Lightness FamilyNeutral
  • HEX IDB5121F
  • DECIMAL ID11866655
  • Name LengthThis color has no name
  • Seen by search & AI crawlers14 times
  • Counting from2025-01-01