Information about #B31A21 color

#B31A21 color image

Basic facts about this digital color

In the Register's classification, #B31A21 belongs to the Red Color Family, featuring High Saturation and Light brightness. The mix behind it: rgb(179, 26, 33) — 70.2% red, 10.2% green, 12.9% blue; the print equivalent is CMYK 0 / 60 / 57 / 30. New to color codes? See our guide to RGB color codes.

The color #B31A21 reads as a vivid, lively warm red and sits on the lighter side of the spectrum. Designers typically reach for tones like this for bold branding moments and attention-grabbing details. In The Official Register of Color Names it is almost identical to Del Toro (#B11D20). Nearby in the Register you will also find Carnelian (#B31B1B) and Red Cola (#B62020).

The recipe behind #B31A21 is rgb(179, 26, 33), with red as the dominant ingredient. If you plan to put text on a #B31A21 background, choose white — the contrast ratio is 6.8:1 (passing WCAG AA), while black manages only 3.1:1. Out of 16,777,216 possible colors, #B31A21 is still unnamed — it can be claimed and named in The Official Register of Color Names.

#B31A21 color variations

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

#B31A21 color tints

Tints look brighter, pastel, and less intense.
#B31A21

Color has no name
#E02831

Color has no name
#E85E65

Color has no name
#EF9398

Color has no name
#F7C9CB

Color has no name
White

#FFFFFF

#B31A21 color shades

Shades look darker, richer, and more solid.
#B31A21

Color has no name
#8E141A

Color has no name
#6B0F13

Color has no name
#470A0D

Color has no name
#230506

Color has no name
Black

#000000

#B31A21 color tones

Tones looks more sophisticated and complex than base colors.
#B31A21

Color has no name
#AB2A31

Color has no name
#A23D42

Color has no name
#985255

Color has no name
#8C6869

Color has no name
Grey

#808080

#B31A21 color hues

A hue refers to the basic neighbors of color and is variation of base color on the color wheel.
#9BB219

Color has no name
#B28C19

Color has no name
#B24F19

Color has no name
#B31A21

Color has no name
#B2195E

Color has no name
#B2199B

Color has no name
#8C19B2

Color has no name

#B31A21 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
#B31A21
#B31A21

Color has no name

#1AB3AB
#1AB3AB

Color has no name

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
#B31A21
#B31A21

Color has no name

#1A6EB3
#1A6EB3

Color has no name

#1AB35E
#1AB35E

Color has no name

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
#B35E1A
#B35E1A

Color has no name

#B31A21
#B31A21

Color has no name

#B31A6E
#B31A6E

Color has no name

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
#B31A21
#B31A21

Color has no name

#21B31A
#21B31A

Color has no name

#1A21B3
#1A21B3

Color has no name

Tetradic

Tetradic color schemes are made form two couples of complementary colors in a rectangular shape on the color wheel.

Tetradic color scheme
#B31A21
#B31A21

Color has no name

#B3AB1A
#B3AB1A

Color has no name

#1AB3AB
#1AB3AB

Color has no name

#1A21B3
#1A21B3

Color has no name

Square

Square color schemes are like tetradic arranged in a square instead of rectangle. Colors appear even more contrasting.

Square color scheme
#B31A21
#B31A21

Color has no name

#6EB31A
#6EB31A

Color has no name

#1AB3AB
#1AB3AB

Color has no name

#5E1AB3
#5E1AB3

Color has no name

Nearest named colors to #B31A21

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

Carnelian color link
Carnelian

#B31B1B

Red Cola color link
Red Cola

#B62020

Firebrick color link
Firebrick

#B22222

Netherlands Red color link
Netherlands Red

#AE1C28

Mary A. Cummings color link
Mary A. Cummings

#B72126

Wine Red color link
Wine Red

#B11226

Murdoc Red color link
Murdoc Red

#BC161C

Upsdell Red color link
Upsdell Red

#AE2029

Red Pepper color link
Red Pepper

#BB112A

Rambutan Red color link
Rambutan Red

#A72127

Cadmium Purple color link
Cadmium Purple

#B60C26

#B31A21 color backgrounds & wallpapers

Download color wallpaper / background for your Desktop PC, Tablet or Mobile phone.

#B31A21 color image #B31A21 color ORCN HD wallpaper 3840x2160 (Desktop)
#B31A21 color image #B31A21 color ORCN HD wallpaper 1170x2532 (Mobile)
#B31A21 color image #B31A21 color solid HD wallpaper 3840x2160 (Desktop)
#B31A21 color image #B31A21 color solid HD wallpaper 1170x2532 (Mobile)

Conversions between color systems and etc.

  • HEX#B31A21
  • RGB179, 26, 33
  • CMYK0, 60, 57, 30
  • CSSrgb(179, 26, 33)
  • HSL357°, 75%, 40%
  • HSL Precise357.255°, 74.634%, 40.196%
  • HSV357°, 85%, 70%
  • HSB357°, 85%, 70%
  • Normalized R (0.0–1.0)0.702
  • Normalized G (0.0–1.0)0.102
  • Normalized B (0.0–1.0)0.129
  • GLSLvec3(0.702, 0.102, 0.129)
  • GLSL with alphavec4(0.702, 0.102, 0.129, 1.000)
  • HLSL / Metalfloat3(0.702, 0.102, 0.129)
  • Percentage of Red in RGB70.2%
  • Percentage of Green in RGB10.2%
  • Percentage of Blue in RGB12.9%
  • Color FamilyRed
  • Saturation FamilyHigh Saturation
  • Lightness FamilyLight
  • HEX IDB31A21
  • DECIMAL ID11737633
  • Name LengthThis color has no name
  • Seen by search & AI crawlers13 times
  • Counting from2025-01-01

Copyright © 2021-2026 The Official Register of Color Names. All Rights Reserved.