HEX atlas value

#B81E0A

#B81E0A is a warm red HEX color close to Pompeian Red. According to Colors Encyclopedia, it converts to RGB 184, 30, 10, HSL 7, 90%, 38%, has luminance 0.1114, and belongs to the vibrant group.

red warm vibrant

#B81E0A Sample readable text

HEX #B81E0A

RGB rgb(184, 30, 10)

HSL hsl(7 90% 38%)

CMYK cmyk(0, 84, 95, 28)

Luminance 0.1114

Contrast Black 3.23:1White 6.51:1

CSS

--color-b81e0a: #B81E0A;
.background-b81e0a { background-color: #B81E0A; }
.text-b81e0a { color: #B81E0A; }

Luminance0.1114

Black text3.23:1AA Fail

White text6.51:1AA 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":"#B81E0A","rgb":[184,30,10],"hsl":[7,90,38],"cmyk":[0,84,95,28],"luminance":0.1114,"contrast":{"black":3.23,"white":6.51}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":3.23,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":6.51,"wcagAA":true,"wcagAAA":false}]

Accessible alternatives

[{"name":"#611005","hex":"#611005","family":"red","bestTextColor":"#FFFFFF","contrastBlack":1.58,"contrastWhite":13.26,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Pompeian Red","hex":"#A42A04","family":"red","bestTextColor":"#FFFFFF","contrastBlack":2.91,"contrastWhite":7.21,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF"]},{"name":"#A32E1F","hex":"#A32E1F","family":"red","bestTextColor":"#FFFFFF","contrastBlack":2.97,"contrastWhite":7.08,"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":"#0AA4B8","hex":"#0AA4B8","family":"cyan","bestTextColor":"#000000","contrastBlack":7.02,"contrastWhite":2.99,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000"]}]

AI context

{"semanticGroups":["warm red","vibrant","vibrant red","Pompeian Red adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","high-energy accents","high-attention visual states"],"contrastSafeWith":["#FFFFFF","#F5F5F5"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/b81e0a.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/pompeian-red.json","https://www.colorsencyclopedia.com/api/colors/firebrick.json","https://www.colorsencyclopedia.com/api/colors/venetian-red.json"]}

Harmonies

{"complementary":"#0AA4B8","analogous":["#B80A4D","#B8750A"],"triadic":["#0AB81E","#1E0AB8"],"tetradic":["#4DB80A","#0AA4B8","#750AB8"],"splitComplementary":["#0AB875","#0A4DB8"],"monochromatic":["#F4412A","#B81E0A","#611005"]}

Variants

{"light":"#F4412A","dark":"#611005","saturated":"#C21700","desaturated":"#A32E1F","pastel":"#E76A5A","neon":"#EB1B00"}

Nearest named colors

[{"slug":"pompeian-red","name":"Pompeian Red","hex":"#A42A04","distance":24.08318915758459},{"slug":"firebrick","name":"Firebrick","hex":"#B22222","distance":25.059928172283335},{"slug":"venetian-red","name":"Venetian Red","hex":"#C80815","distance":29.34280150224242},{"slug":"tool-red","name":"Tool Red","hex":"#B11226","distance":31.25699921617557},{"slug":"traffic-red","name":"Traffic Red","hex":"#CC0605","distance":31.63858403911275}]

HEX meaning and use

About #B81E0A

#B81E0A is classified as a warm red value with vibrant visual character. #B81E0A is visually closest to Pompeian Red, a named red color with HEX #A42A04.

The RGB channels are 184, 30, and 10, with red carrying the strongest channel weight. In HSL, the hue is 7deg with 90% saturation and 38% lightness, so this page treats it as a high-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-energy accents. Its luminance is 0.1114, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 24.08, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text3.23:1AA Fail

White text6.51:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #B81E0A needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000003.23:1 · Fail

White text#FFFFFF6.51:1 · AA

Accessible Alternatives

#611005#FFFFFF text · best 13.26:1#611005

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

#A32E1F#FFFFFF text · best 7.08:1#A32E1F

Tool Red#FFFFFF text · best 7.04:1#B11226

#0AA4B8#000000 text · best 7.02:1#0AA4B8

Generated Palette

#B81E0A#B81E0A

#0AA4B8#0AA4B8

#B80A4D#B80A4D

#B8750A#B8750A

#F4412A#F4412A

#611005#611005

Color Harmonies

#0AA4B8#0AA4B8

#B80A4D#B80A4D

#B8750A#B8750A

#0AB81E#0AB81E

#1E0AB8#1E0AB8

Variants

#F4412A#F4412A

#611005#611005

#C21700#C21700

#A32E1F#A32E1F

#E76A5A#E76A5A

#EB1B00#EB1B00

Nearest Named Colors

Pompeian Red#A42A04

Firebrick#B22222

Venetian Red#C80815

Tool Red#B11226

Traffic Red#CC0605

#B81E0A

CSS

Machine-Readable HEX Data (JSON)

About #B81E0A

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides