Colors Encyclopedia

HEX atlas value

#B22B24

#B22B24 is a warm red HEX color close to Firebrick. According to Colors Encyclopedia, it converts to RGB 178, 43, 36, HSL 3, 66%, 42%, has luminance 0.1132, and belongs to the balanced group.

redwarmbalanced
#B22B24 Sample readable text
HEX #B22B24
RGB rgb(178, 43, 36)
HSL hsl(3 66% 42%)
CMYK cmyk(0, 76, 80, 30)
Luminance 0.1132
Contrast Black 3.26:1White 6.43:1

CSS

--color-b22b24: #B22B24;
.background-b22b24 { background-color: #B22B24; }
.text-b22b24 { color: #B22B24; }

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
Luminance0.1132
Black text3.26:1AA Fail
White text6.43:1AA 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":"#B22B24","rgb":[178,43,36],"hsl":[3,66,42],"cmyk":[0,76,80,30],"luminance":0.1132,"contrast":{"black":3.26,"white":6.43}}
WCAG
{"AA":["#FFFFFF","#F5F5F5"],"AAA":[]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":3.26,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":6.43,"wcagAA":true,"wcagAAA":false}]
Accessible alternatives
[{"name":"#661915","hex":"#661915","family":"red","bestTextColor":"#FFFFFF","contrastBlack":1.71,"contrastWhite":12.25,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#24ABB2","hex":"#24ABB2","family":"cyan","bestTextColor":"#000000","contrastBlack":7.54,"contrastWhite":2.78,"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"]},{"name":"Firebrick","hex":"#B22222","family":"red","bestTextColor":"#FFFFFF","contrastBlack":3.14,"contrastWhite":6.68,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":[]}]
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/b22b24.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":"#24ABB2","analogous":["#B22464","#B27224"],"triadic":["#24B22B","#2B24B2"],"tetradic":["#64B224","#24ABB2","#7224B2"],"splitComplementary":["#24B272","#2464B2"],"monochromatic":["#DC5C56","#B22B24","#661915"]}
Variants
{"light":"#DC5C56","dark":"#661915","saturated":"#C9160D","desaturated":"#9A413C","pastel":"#D68480","neon":"#FF0D00"}
Nearest named colors
[{"slug":"firebrick","name":"Firebrick","hex":"#B22222","distance":9.219544457292887},{"slug":"brown","name":"Brown","hex":"#A52A2A","distance":14.352700094407323},{"slug":"tool-red","name":"Tool Red","hex":"#B11226","distance":25.099800796022265},{"slug":"persian-red","name":"Persian Red","hex":"#CC3333","distance":31.064449134018133},{"slug":"rust","name":"Rust","hex":"#B7410E","distance":31.51190251317746}]
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

HEX meaning and use

About #B22B24

#B22B24 is classified as a warm red value with balanced visual character. #B22B24 is visually closest to Firebrick, a named red color with HEX #B22222.

The RGB channels are 178, 43, and 36, with red carrying the strongest channel weight. In HSL, the hue is 3deg 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 0.1132, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 9.22, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text3.26:1AA Fail
White text6.43:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #B22B24 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000003.26:1 · Fail
White text#FFFFFF6.43:1 · AA

Accessible Alternatives

#661915#FFFFFF text · best 12.25:1#661915
#24ABB2#000000 text · best 7.54:1#24ABB2
Brown#FFFFFF text · best 7.09:1#A52A2A
Tool Red#FFFFFF text · best 7.04:1#B11226
Firebrick#FFFFFF text · best 6.68:1#B22222

Generated Palette

#B22B24#B22B24
#24ABB2#24ABB2
#B22464#B22464
#B27224#B27224
#DC5C56#DC5C56
#661915#661915

Color Harmonies

#24ABB2#24ABB2
#B22464#B22464
#B27224#B27224
#24B22B#24B22B
#2B24B2#2B24B2

Variants

#DC5C56#DC5C56
#661915#661915
#C9160D#C9160D
#9A413C#9A413C
#D68480#D68480
#FF0D00#FF0D00

Nearest Named Colors

Firebrick#B22222
Brown#A52A2A
Tool Red#B11226
Persian Red#CC3333
Rust#B7410E

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.#B22B24 APIOpen the machine-readable JSON record for this HEX value.