HEX atlas value

#51C94A

#51C94A is a cool green HEX color close to Lime Green. According to Colors Encyclopedia, it converts to RGB 81, 201, 74, HSL 117, 54%, 54%, has luminance 0.4402, and belongs to the earth tone group.

#51C94A Sample readable text
HEX #51C94A
RGB rgb(81, 201, 74)
HSL hsl(117 54% 54%)
CMYK cmyk(60, 0, 63, 21)
Luminance 0.4402
Contrast Black 9.8:1White 2.14:1

CSS

--color-51c94a: #51C94A;
.background-51c94a { background-color: #51C94A; }
.text-51c94a { color: #51C94A; }

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
Luminance0.4402
Black text9.8:1AA 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
Download JSON Open API
Structured sections
Color systems
{"hex":"#51C94A","rgb":[81,201,74],"hsl":[117,54,54],"cmyk":[60,0,63,21],"luminance":0.4402,"contrast":{"black":9.8,"white":2.14}}
WCAG
{"AA":["#000000","#1A1A1A","#36454F"],"AAA":["#000000","#1A1A1A"]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":9.8,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":2.14,"wcagAA":false,"wcagAAA":false}]
Accessible alternatives
[{"name":"#95DE91","hex":"#95DE91","family":"green","bestTextColor":"#000000","contrastBlack":13.14,"contrastWhite":1.6,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#39E331","hex":"#39E331","family":"green","bestTextColor":"#000000","contrastBlack":12.21,"contrastWhite":1.72,"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":"#90C94A","hex":"#90C94A","family":"green","bestTextColor":"#000000","contrastBlack":10.64,"contrastWhite":1.97,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#4AC983","hex":"#4AC983","family":"green","bestTextColor":"#000000","contrastBlack":9.97,"contrastWhite":2.11,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]}]
AI context
{"semanticGroups":["cool green","earth tone","earth tone green","Lime Green adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","natural palettes","botanical and wellness palettes"],"contrastSafeWith":["#000000","#1A1A1A","#36454F"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/51c94a.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/lime-green.json","https://www.colorsencyclopedia.com/api/colors/toxic-green.json","https://www.colorsencyclopedia.com/api/colors/emerald.json"]}
Harmonies
{"complementary":"#C34AC9","analogous":["#90C94A","#4AC983"],"triadic":["#4A51C9","#C94A51"],"tetradic":["#4A90C9","#C34AC9","#C9834A"],"splitComplementary":["#834AC9","#C94A90"],"monochromatic":["#95DE91","#51C94A","#2F8D2A"]}
Variants
{"light":"#95DE91","dark":"#2F8D2A","saturated":"#39E331","desaturated":"#68AF64","pastel":"#B7DEB5","neon":"#47FF3D"}
Nearest named colors
[{"slug":"lime-green","name":"Lime Green","hex":"#32CD32","distance":39.408120990476064},{"slug":"toxic-green","name":"Toxic Green","hex":"#61DE2A","distance":41.48493702538308},{"slug":"emerald","name":"Emerald","hex":"#50C878","distance":46.021733996015406},{"slug":"paris-green","name":"Paris Green","hex":"#50C878","distance":46.021733996015406},{"slug":"medium-sea-green","name":"Medium Sea Green","hex":"#3CB371","distance":49.457052075512955}]

HEX meaning and use

About #51C94A

#51C94A is classified as a cool green value with earth tone visual character. #51C94A is visually closest to Lime Green, a named green color with HEX #32CD32.

The RGB channels are 81, 201, and 74, with green carrying the strongest channel weight. In HSL, the hue is 117deg with 54% saturation and 54% 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 0.4402, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 39.41, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text9.8:1AA 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 #51C94A needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000009.8:1 · AAA
White text#FFFFFF2.14:1 · Fail

Accessible Alternatives

#95DE91#000000 text · best 13.14:1#95DE91
#39E331#000000 text · best 12.21:1#39E331
Toxic Green#000000 text · best 11.99:1#61DE2A
#90C94A#000000 text · best 10.64:1#90C94A
#4AC983#000000 text · best 9.97:1#4AC983

Generated Palette

#51C94A#51C94A
#C34AC9#C34AC9
#90C94A#90C94A
#4AC983#4AC983
#95DE91#95DE91
#2F8D2A#2F8D2A

Color Harmonies

#C34AC9#C34AC9
#90C94A#90C94A
#4AC983#4AC983
#4A51C9#4A51C9
#C94A51#C94A51

Variants

#95DE91#95DE91
#2F8D2A#2F8D2A
#39E331#39E331
#68AF64#68AF64
#B7DEB5#B7DEB5
#47FF3D#47FF3D

Nearest Named Colors