HEX atlas value

#B5B80A

#B5B80A is a warm yellow HEX color close to Acid Green. According to Colors Encyclopedia, it converts to RGB 181, 184, 10, HSL 61, 90%, 38%, has luminance 0.4413, and belongs to the vibrant group.

yellow warm vibrant

#B5B80A Sample readable text

HEX #B5B80A

RGB rgb(181, 184, 10)

HSL hsl(61 90% 38%)

CMYK cmyk(2, 0, 95, 28)

Luminance 0.4413

Contrast Black 9.83:1White 2.14:1

CSS

--color-b5b80a: #B5B80A;
.background-b5b80a { background-color: #B5B80A; }
.text-b5b80a { color: #B5B80A; }

Luminance0.4413

Black text9.83:1AA Pass

White text2.14:1AA Fail

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":"#B5B80A","rgb":[181,184,10],"hsl":[61,90,38],"cmyk":[2,0,95,28],"luminance":0.4413,"contrast":{"black":9.83,"white":2.14}}

WCAG

{"AA":["#000000","#1A1A1A","#36454F"],"AAA":["#000000","#1A1A1A"]}

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":9.83,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":2.14,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"#F0F42A","hex":"#F0F42A","family":"yellow","bestTextColor":"#000000","contrastBlack":17.68,"contrastWhite":1.19,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#0D0AB8","hex":"#0D0AB8","family":"blue","bestTextColor":"#FFFFFF","contrastBlack":1.75,"contrastWhite":11.99,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#BFC200","hex":"#BFC200","family":"yellow","bestTextColor":"#000000","contrastBlack":10.93,"contrastWhite":1.92,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"Peridot","hex":"#B4C424","family":"yellow","bestTextColor":"#000000","contrastBlack":10.86,"contrastWhite":1.93,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"Acid Green","hex":"#B0BF1A","family":"yellow","bestTextColor":"#000000","contrastBlack":10.31,"contrastWhite":2.04,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]}]

AI context

{"semanticGroups":["warm yellow","vibrant","vibrant yellow","Acid Green adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","high-energy accents","highlight and warning systems"],"contrastSafeWith":["#000000","#1A1A1A","#36454F"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/b5b80a.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/acid-green.json","https://www.colorsencyclopedia.com/api/colors/peridot.json","https://www.colorsencyclopedia.com/api/colors/mustard-yellow.json"]}

Harmonies

{"complementary":"#0D0AB8","analogous":["#B8640A","#5EB80A"],"triadic":["#0AB5B8","#B80AB5"],"tetradic":["#0AB864","#0D0AB8","#B80A5E"],"splitComplementary":["#0A5EB8","#640AB8"],"monochromatic":["#F0F42A","#B5B80A","#5F6105"]}

Variants

{"light":"#F0F42A","dark":"#5F6105","saturated":"#BFC200","desaturated":"#A1A31F","pastel":"#E5E75A","neon":"#E7EB00"}

Nearest named colors

[{"slug":"acid-green","name":"Acid Green","hex":"#B0BF1A","distance":18.16590212458495},{"slug":"peridot","name":"Peridot","hex":"#B4C424","distance":28.653097563788805},{"slug":"mustard-yellow","name":"Mustard Yellow","hex":"#E1AD01","distance":46.238512086787566},{"slug":"goldenrod","name":"Goldenrod","hex":"#DAA520","distance":47.05316142407437},{"slug":"dark-goldenrod","name":"Dark Goldenrod","hex":"#B8860B","distance":50.0999001995014}]

HEX meaning and use

About #B5B80A

#B5B80A is classified as a warm yellow value with vibrant visual character. #B5B80A is visually closest to Acid Green, a named yellow color with HEX #B0BF1A.

The RGB channels are 181, 184, and 10, with green carrying the strongest channel weight. In HSL, the hue is 61deg 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 0.4413, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 18.17, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text9.83:1AA Pass

White text2.14:1AA Fail

AA text options: #000000, #1A1A1A, #36454F.

AAA text options: #000000, #1A1A1A.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #B5B80A needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000009.83:1 · AAA

White text#FFFFFF2.14:1 · Fail

Accessible Alternatives

#F0F42A#000000 text · best 17.68:1#F0F42A

#0D0AB8#FFFFFF text · best 11.99:1#0D0AB8

#BFC200#000000 text · best 10.93:1#BFC200

Peridot#000000 text · best 10.86:1#B4C424

Acid Green#000000 text · best 10.31:1#B0BF1A

Generated Palette

#B5B80A#B5B80A

#0D0AB8#0D0AB8

#B8640A#B8640A

#5EB80A#5EB80A

#F0F42A#F0F42A

#5F6105#5F6105

Color Harmonies

#0D0AB8#0D0AB8

#B8640A#B8640A

#5EB80A#5EB80A

#0AB5B8#0AB5B8

#B80AB5#B80AB5

Variants

#F0F42A#F0F42A

#5F6105#5F6105

#BFC200#BFC200

#A1A31F#A1A31F

#E5E75A#E5E75A

#E7EB00#E7EB00

Nearest Named Colors

Acid Green#B0BF1A

Peridot#B4C424

Mustard Yellow#E1AD01

Goldenrod#DAA520

Dark Goldenrod#B8860B

#B5B80A

CSS

Machine-Readable HEX Data (JSON)

About #B5B80A

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides