HEX atlas value

#81BC2F

#81BC2F is a cool green HEX color close to Yellow Green. According to Colors Encyclopedia, it converts to RGB 129, 188, 47, HSL 85, 60%, 46%, has luminance 0.4084, and belongs to the earth tone group.

#81BC2F Sample readable text
HEX #81BC2F
RGB rgb(129, 188, 47)
HSL hsl(85 60% 46%)
CMYK cmyk(31, 0, 75, 26)
Luminance 0.4084
Contrast Black 9.17:1White 2.29:1

CSS

--color-81bc2f: #81BC2F;
.background-81bc2f { background-color: #81BC2F; }
.text-81bc2f { color: #81BC2F; }

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
Luminance0.4084
Black text9.17:1AA Pass
White text2.29:1AA 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
Download JSON Open API
Structured sections
Color systems
{"hex":"#81BC2F","rgb":[129,188,47],"hsl":[85,60,46],"cmyk":[31,0,75,26],"luminance":0.4084,"contrast":{"black":9.17,"white":2.29}}
WCAG
{"AA":["#000000","#1A1A1A"],"AAA":["#000000","#1A1A1A"]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":9.17,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":2.29,"wcagAA":false,"wcagAAA":false}]
Accessible alternatives
[{"name":"#ACDA6C","hex":"#ACDA6C","family":"green","bestTextColor":"#000000","contrastBlack":13,"contrastWhite":1.62,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"Toxic Green","hex":"#61DE2A","family":"green","bestTextColor":"#000000","contrastBlack":11.99,"contrastWhite":1.75,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#85D515","hex":"#85D515","family":"green","bestTextColor":"#000000","contrastBlack":11.53,"contrastWhite":1.82,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"Yellow Green","hex":"#9ACD32","family":"green","bestTextColor":"#000000","contrastBlack":11.15,"contrastWhite":1.88,"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":["cool green","earth tone","earth tone green","Yellow Green adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","natural palettes","botanical and wellness palettes"],"contrastSafeWith":["#000000","#1A1A1A"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/81bc2f.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/yellow-green.json","https://www.colorsencyclopedia.com/api/colors/toxic-green.json","https://www.colorsencyclopedia.com/api/colors/acid-green.json"]}
Harmonies
{"complementary":"#6A2FBC","analogous":["#BCB02F","#3BBC2F"],"triadic":["#2F81BC","#BC2F81"],"tetradic":["#2FBCB0","#6A2FBC","#BC2F3B"],"splitComplementary":["#2F3BBC","#B02FBC"],"monochromatic":["#ACDA6C","#81BC2F","#4F721D"]}
Variants
{"light":"#ACDA6C","dark":"#4F721D","saturated":"#85D515","desaturated":"#7DA249","pastel":"#BBD694","neon":"#9DFF14"}
Nearest named colors
[{"slug":"yellow-green","name":"Yellow Green","hex":"#9ACD32","distance":30.380915061926625},{"slug":"toxic-green","name":"Toxic Green","hex":"#61DE2A","distance":46.95742752749558},{"slug":"acid-green","name":"Acid Green","hex":"#B0BF1A","distance":51.56549233741495},{"slug":"olive-drab","name":"Olive Drab","hex":"#6B8E23","distance":52.38320341483518},{"slug":"olive-leaf","name":"Olive Leaf","hex":"#6B8E23","distance":52.38320341483518}]

HEX meaning and use

About #81BC2F

#81BC2F is classified as a cool green value with earth tone visual character. #81BC2F is visually closest to Yellow Green, a named green color with HEX #9ACD32.

The RGB channels are 129, 188, and 47, with green carrying the strongest channel weight. In HSL, the hue is 85deg with 60% saturation and 46% 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 natural palettes. Its luminance is 0.4084, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 30.38, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text9.17:1AA Pass
White text2.29:1AA Fail

AA text options: #000000, #1A1A1A.

AAA text options: #000000, #1A1A1A.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #81BC2F needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000009.17:1 · AAA
White text#FFFFFF2.29:1 · Fail

Accessible Alternatives

#ACDA6C#000000 text · best 13:1#ACDA6C
Toxic Green#000000 text · best 11.99:1#61DE2A
#85D515#000000 text · best 11.53:1#85D515
Yellow Green#000000 text · best 11.15:1#9ACD32
Acid Green#000000 text · best 10.31:1#B0BF1A

Generated Palette

#81BC2F#81BC2F
#6A2FBC#6A2FBC
#BCB02F#BCB02F
#3BBC2F#3BBC2F
#ACDA6C#ACDA6C
#4F721D#4F721D

Color Harmonies

#6A2FBC#6A2FBC
#BCB02F#BCB02F
#3BBC2F#3BBC2F
#2F81BC#2F81BC
#BC2F81#BC2F81

Variants

#ACDA6C#ACDA6C
#4F721D#4F721D
#85D515#85D515
#7DA249#7DA249
#BBD694#BBD694
#9DFF14#9DFF14

Nearest Named Colors