Colors Encyclopedia

HEX atlas value

#B22424

#B22424 is a warm red HEX color close to Firebrick. According to Colors Encyclopedia, it converts to RGB 178, 36, 36, HSL 0, 66%, 42%, has luminance 0.1085, and belongs to the balanced group.

redwarmbalanced
#B22424 Sample readable text
HEX #B22424
RGB rgb(178, 36, 36)
HSL hsl(0 66% 42%)
CMYK cmyk(0, 80, 80, 30)
Luminance 0.1085
Contrast Black 3.17:1White 6.62:1

CSS

--color-b22424: #B22424;
.background-b22424 { background-color: #B22424; }
.text-b22424 { color: #B22424; }

Machine-readable data

Machine-Readable HEX Data (JSON)

Structured HEX color data for conversion, WCAG checks, CSS generation, automation, and AI ingestion.

AI-Ready Dataset v1.0.0
Luminance0.1085
Black text3.17:1AA Fail
White text6.62:1AA Pass
hexCanonical HEX value
rgbRed, green, blue channels
hslHue, saturation, lightness
cmykApproximate print conversion
wcagAA and AAA contrast options
harmoniesMathematical harmony sets
variantsGenerated tone variants
nearestColorsKnowledge graph neighbors
Download JSON Open API
Structured sections
Color systems
{"hex":"#B22424","rgb":[178,36,36],"hsl":[0,66,42],"cmyk":[0,80,80,30],"luminance":0.1085,"contrast":{"black":3.17,"white":6.62}}
WCAG
{"AA":["#FFFFFF","#F5F5F5"],"AAA":[]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":3.17,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":6.62,"wcagAA":true,"wcagAAA":false}]
Accessible alternatives
[{"name":"#661515","hex":"#661515","family":"red","bestTextColor":"#FFFFFF","contrastBlack":1.68,"contrastWhite":12.47,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Ruby Red","hex":"#9B111E","family":"red","bestTextColor":"#FFFFFF","contrastBlack":2.49,"contrastWhite":8.43,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#24B2B2","hex":"#24B2B2","family":"cyan","bestTextColor":"#000000","contrastBlack":8.09,"contrastWhite":2.6,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000"]},{"name":"Brown","hex":"#A52A2A","family":"red","bestTextColor":"#FFFFFF","contrastBlack":2.96,"contrastWhite":7.09,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF"]},{"name":"Tool Red","hex":"#B11226","family":"red","bestTextColor":"#FFFFFF","contrastBlack":2.98,"contrastWhite":7.04,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF"]}]
AI context
{"semanticGroups":["warm red","balanced","balanced red","Firebrick adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","high-attention visual states"],"contrastSafeWith":["#FFFFFF","#F5F5F5"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/b22424.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/firebrick.json","https://www.colorsencyclopedia.com/api/colors/brown.json","https://www.colorsencyclopedia.com/api/colors/tool-red.json"]}
Harmonies
{"complementary":"#24B2B2","analogous":["#B2246B","#B26B24"],"triadic":["#24B224","#2424B2"],"tetradic":["#6BB224","#24B2B2","#6B24B2"],"splitComplementary":["#24B26B","#246BB2"],"monochromatic":["#DC5656","#B22424","#661515"]}
Variants
{"light":"#DC5656","dark":"#661515","saturated":"#C90D0D","desaturated":"#9A3C3C","pastel":"#D68080","neon":"#FF0000"}
Nearest named colors
[{"slug":"firebrick","name":"Firebrick","hex":"#B22222","distance":2.8284271247461903},{"slug":"brown","name":"Brown","hex":"#A52A2A","distance":15.524174696260024},{"slug":"tool-red","name":"Tool Red","hex":"#B11226","distance":18.138357147217054},{"slug":"ruby-red","name":"Ruby Red","hex":"#9B111E","distance":30.430248109405877},{"slug":"persian-red","name":"Persian Red","hex":"#CC3333","distance":33.555923471125034}]
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

HEX meaning and use

About #B22424

#B22424 is classified as a warm red value with balanced visual character. #B22424 is visually closest to Firebrick, a named red color with HEX #B22222.

The RGB channels are 178, 36, and 36, with red carrying the strongest channel weight. In HSL, the hue is 0deg with 66% saturation and 42% lightness, so this page treats it as a moderate-saturation, mid-lightness atlas color rather than a generic swatch.

According to Colors Encyclopedia, this HEX value works best for color conversion, WCAG contrast checks, CSS color tokens, and high-attention visual states. Its luminance is 0.1085, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 2.83, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text3.17:1AA Fail
White text6.62:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #B22424 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000003.17:1 · Fail
White text#FFFFFF6.62:1 · AA

Accessible Alternatives

#661515#FFFFFF text · best 12.47:1#661515
Ruby Red#FFFFFF text · best 8.43:1#9B111E
#24B2B2#000000 text · best 8.09:1#24B2B2
Brown#FFFFFF text · best 7.09:1#A52A2A
Tool Red#FFFFFF text · best 7.04:1#B11226

Generated Palette

#B22424#B22424
#24B2B2#24B2B2
#B2246B#B2246B
#B26B24#B26B24
#DC5656#DC5656
#661515#661515

Color Harmonies

#24B2B2#24B2B2
#B2246B#B2246B
#B26B24#B26B24
#24B224#24B224
#2424B2#2424B2

Variants

#DC5656#DC5656
#661515#661515
#C90D0D#C90D0D
#9A3C3C#9A3C3C
#D68080#D68080
Red#FF0000

Nearest Named Colors

Firebrick#B22222
Brown#A52A2A
Tool Red#B11226
Ruby Red#9B111E
Persian Red#CC3333

Related HEX Guides

Firebrick colorOpen the nearest named color reference for #B22222.Brown colorOpen the nearest named color reference for #A52A2A.Tool Red colorOpen the nearest named color reference for #B11226.Red color familyBrowse named red colors related to this HEX value.Warm colorsExplore colors with similar temperature behavior.Balanced colorsFind colors in the balanced group.Color palettesBrowse palette systems related to generated color combinations.Compare colorsCompare named colors near this HEX value.Accessible colorsBrowse WCAG-friendly named colors and safe text options.#B22424 APIOpen the machine-readable JSON record for this HEX value.