HEX atlas value

#B22222

#B22222 is a warm red HEX color close to Firebrick. According to Colors Encyclopedia, it converts to RGB 178, 34, 34, HSL 0, 68%, 42%, has luminance 0.1072, and belongs to the balanced group.

red warm balanced

#B22222 Sample readable text

HEX #B22222

RGB rgb(178, 34, 34)

HSL hsl(0 68% 42%)

CMYK cmyk(0, 81, 81, 30)

Luminance 0.1072

Contrast Black 3.14:1White 6.68:1

CSS

--color-b22222: #B22222;
.background-b22222 { background-color: #B22222; }
.text-b22222 { color: #B22222; }

Luminance0.1072

Black text3.14:1AA Fail

White text6.68:1AA 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

Structured sections

Color systems

{"hex":"#B22222","rgb":[178,34,34],"hsl":[0,68,42],"cmyk":[0,81,81,30],"luminance":0.1072,"contrast":{"black":3.14,"white":6.68}}

WCAG

{"AA":["#FFFFFF","#F5F5F5"],"AAA":[]}

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":3.14,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":6.68,"wcagAA":true,"wcagAAA":false}]

Accessible alternatives

[{"name":"#671414","hex":"#671414","family":"red","bestTextColor":"#FFFFFF","contrastBlack":1.69,"contrastWhite":12.46,"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":"#22B4B4","hex":"#22B4B4","family":"cyan","bestTextColor":"#000000","contrastBlack":8.26,"contrastWhite":2.54,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000"]},{"name":"Pompeian Red","hex":"#A42A04","family":"red","bestTextColor":"#FFFFFF","contrastBlack":2.91,"contrastWhite":7.21,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF"]},{"name":"Brown","hex":"#A52A2A","family":"red","bestTextColor":"#FFFFFF","contrastBlack":2.96,"contrastWhite":7.09,"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/b22222.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/firebrick.json","https://www.colorsencyclopedia.com/api/colors/tool-red.json","https://www.colorsencyclopedia.com/api/colors/brown.json"]}

Harmonies

{"complementary":"#22B4B4","analogous":["#B4226B","#B46B22"],"triadic":["#22B422","#2222B4"],"tetradic":["#6BB422","#22B4B4","#6B22B4"],"splitComplementary":["#22B46B","#226BB4"],"monochromatic":["#DE5454","#B22222","#671414"]}

Variants

{"light":"#DE5454","dark":"#671414","saturated":"#CB0B0B","desaturated":"#9C3A3A","pastel":"#D77E7E","neon":"#FF0000"}

Nearest named colors

[{"slug":"firebrick","name":"Firebrick","hex":"#B22222","distance":0},{"slug":"tool-red","name":"Tool Red","hex":"#B11226","distance":16.522711641858304},{"slug":"brown","name":"Brown","hex":"#A52A2A","distance":17.233687939614086},{"slug":"ruby-red","name":"Ruby Red","hex":"#9B111E","distance":28.879058156387302},{"slug":"pompeian-red","name":"Pompeian Red","hex":"#A42A04","distance":34.058772731852805}]

HEX meaning and use

About #B22222

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

The RGB channels are 178, 34, and 34, with red carrying the strongest channel weight. In HSL, the hue is 0deg with 68% 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 0.1072, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 0.00, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text3.14:1AA Fail

White text6.68:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #B22222 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000003.14:1 · Fail

White text#FFFFFF6.68:1 · AA

Accessible Alternatives

#671414#FFFFFF text · best 12.46:1#671414

Ruby Red#FFFFFF text · best 8.43:1#9B111E

#22B4B4#000000 text · best 8.26:1#22B4B4

Pompeian Red#FFFFFF text · best 7.21:1#A42A04

Brown#FFFFFF text · best 7.09:1#A52A2A

Generated Palette

Firebrick#B22222

#22B4B4#22B4B4

#B4226B#B4226B

#B46B22#B46B22

#DE5454#DE5454

#671414#671414

Color Harmonies

#22B4B4#22B4B4

#B4226B#B4226B

#B46B22#B46B22

#22B422#22B422

#2222B4#2222B4

Variants

#DE5454#DE5454

#671414#671414

#CB0B0B#CB0B0B

#9C3A3A#9C3A3A

#D77E7E#D77E7E

Red#FF0000

Nearest Named Colors

Firebrick#B22222

Tool Red#B11226

Brown#A52A2A

Ruby Red#9B111E

Pompeian Red#A42A04

#B22222

CSS

Machine-Readable HEX Data (JSON)

About #B22222

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides