HEX atlas value

#A1B80A

#A1B80A is a warm yellow HEX color close to Acid Green. According to Colors Encyclopedia, it converts to RGB 161, 184, 10, HSL 68, 90%, 38%, has luminance 0.4188, and belongs to the vibrant group.

yellow warm vibrant

#A1B80A Sample readable text

HEX #A1B80A

RGB rgb(161, 184, 10)

HSL hsl(68 90% 38%)

CMYK cmyk(13, 0, 95, 28)

Luminance 0.4188

Contrast Black 9.38:1White 2.24:1

CSS

--color-a1b80a: #A1B80A;
.background-a1b80a { background-color: #A1B80A; }
.text-a1b80a { color: #A1B80A; }

Luminance0.4188

Black text9.38:1AA Pass

White text2.24:1AA 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":"#A1B80A","rgb":[161,184,10],"hsl":[68,90,38],"cmyk":[13,0,95,28],"luminance":0.4188,"contrast":{"black":9.38,"white":2.24}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":9.38,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":2.24,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"#D9F42A","hex":"#D9F42A","family":"yellow","bestTextColor":"#000000","contrastBlack":16.92,"contrastWhite":1.24,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#210AB8","hex":"#210AB8","family":"blue","bestTextColor":"#FFFFFF","contrastBlack":1.8,"contrastWhite":11.67,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Yellow Green","hex":"#9ACD32","family":"green","bestTextColor":"#000000","contrastBlack":11.15,"contrastWhite":1.88,"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":"#A8C200","hex":"#A8C200","family":"yellow","bestTextColor":"#000000","contrastBlack":10.38,"contrastWhite":2.02,"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"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/a1b80a.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/yellow-green.json"]}

Harmonies

{"complementary":"#210AB8","analogous":["#B8780A","#4AB80A"],"triadic":["#0AA1B8","#B80AA1"],"tetradic":["#0AB878","#210AB8","#B80A4A"],"splitComplementary":["#0A4AB8","#780AB8"],"monochromatic":["#D9F42A","#A1B80A","#556105"]}

Variants

{"light":"#D9F42A","dark":"#556105","saturated":"#A8C200","desaturated":"#91A31F","pastel":"#D5E75A","neon":"#CBEB00"}

Nearest named colors

[{"slug":"acid-green","name":"Acid Green","hex":"#B0BF1A","distance":23.021728866442675},{"slug":"peridot","name":"Peridot","hex":"#B4C424","distance":34.36568055487916},{"slug":"yellow-green","name":"Yellow Green","hex":"#9ACD32","distance":45.71651780264984},{"slug":"dark-goldenrod","name":"Dark Goldenrod","hex":"#B8860B","distance":55.04543577809154},{"slug":"brass","name":"Brass","hex":"#B5A642","distance":62.12889826803627}]

HEX meaning and use

About #A1B80A

#A1B80A is classified as a warm yellow value with vibrant visual character. #A1B80A is visually closest to Acid Green, a named yellow color with HEX #B0BF1A.

The RGB channels are 161, 184, and 10, with green carrying the strongest channel weight. In HSL, the hue is 68deg 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 0.4188, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 23.02, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text9.38:1AA Pass

White text2.24:1AA Fail

AA text options: #000000, #1A1A1A.

AAA text options: #000000, #1A1A1A.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #A1B80A needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000009.38:1 · AAA

White text#FFFFFF2.24:1 · Fail

Accessible Alternatives

#D9F42A#000000 text · best 16.92:1#D9F42A

#210AB8#FFFFFF text · best 11.67:1#210AB8

Yellow Green#000000 text · best 11.15:1#9ACD32

Peridot#000000 text · best 10.86:1#B4C424

#A8C200#000000 text · best 10.38:1#A8C200

Generated Palette

#A1B80A#A1B80A

#210AB8#210AB8

#B8780A#B8780A

#4AB80A#4AB80A

#D9F42A#D9F42A

#556105#556105

Color Harmonies

#210AB8#210AB8

#B8780A#B8780A

#4AB80A#4AB80A

#0AA1B8#0AA1B8

#B80AA1#B80AA1

Variants

#D9F42A#D9F42A

#556105#556105

#A8C200#A8C200

#91A31F#91A31F

#D5E75A#D5E75A

#CBEB00#CBEB00

Nearest Named Colors

Acid Green#B0BF1A

Peridot#B4C424

Yellow Green#9ACD32

Dark Goldenrod#B8860B

Brass#B5A642

#A1B80A

CSS

Machine-Readable HEX Data (JSON)

About #A1B80A

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides