HEX atlas value

#51C262

#51C262 is a cool green HEX color close to Emerald. According to Colors Encyclopedia, it converts to RGB 81, 194, 98, HSL 129, 48%, 54%, has luminance 0.4121, and belongs to the earth tone group.

#51C262 Sample readable text
HEX #51C262
RGB rgb(81, 194, 98)
HSL hsl(129 48% 54%)
CMYK cmyk(58, 0, 49, 24)
Luminance 0.4121
Contrast Black 9.24:1White 2.27:1

CSS

--color-51c262: #51C262;
.background-51c262 { background-color: #51C262; }
.text-51c262 { color: #51C262; }

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
Luminance0.4121
Black text9.24:1AA Pass
White text2.27:1AA 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":"#51C262","rgb":[81,194,98],"hsl":[129,48,54],"cmyk":[58,0,49,24],"luminance":0.4121,"contrast":{"black":9.24,"white":2.27}}
WCAG
{"AA":["#000000","#1A1A1A"],"AAA":["#000000","#1A1A1A"]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":9.24,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":2.27,"wcagAA":false,"wcagAAA":false}]
Accessible alternatives
[{"name":"#95DAA0","hex":"#95DAA0","family":"green","bestTextColor":"#000000","contrastBlack":12.81,"contrastWhite":1.64,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#38DC50","hex":"#38DC50","family":"green","bestTextColor":"#000000","contrastBlack":11.52,"contrastWhite":1.82,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"Lime Green","hex":"#32CD32","family":"green","bestTextColor":"#000000","contrastBlack":9.91,"contrastWhite":2.12,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"Paris Green","hex":"#50C878","family":"green","bestTextColor":"#000000","contrastBlack":9.87,"contrastWhite":2.13,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#79C251","hex":"#79C251","family":"green","bestTextColor":"#000000","contrastBlack":9.65,"contrastWhite":2.18,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]}]
AI context
{"semanticGroups":["cool green","earth tone","earth tone green","Emerald 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/51c262.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/emerald.json","https://www.colorsencyclopedia.com/api/colors/paris-green.json","https://www.colorsencyclopedia.com/api/colors/medium-sea-green.json"]}
Harmonies
{"complementary":"#C251B1","analogous":["#79C251","#51C29B"],"triadic":["#6251C2","#C26251"],"tetradic":["#5179C2","#C251B1","#C29B51"],"splitComplementary":["#9B51C2","#C25179"],"monochromatic":["#95DAA0","#51C262","#30883D"]}
Variants
{"light":"#95DAA0","dark":"#30883D","saturated":"#38DC50","desaturated":"#6BA874","pastel":"#B8DBBD","neon":"#3DFF5A"}
Nearest named colors
[{"slug":"emerald","name":"Emerald","hex":"#50C878","distance":22.825424421026653},{"slug":"paris-green","name":"Paris Green","hex":"#50C878","distance":22.825424421026653},{"slug":"medium-sea-green","name":"Medium Sea Green","hex":"#3CB371","distance":29.8496231131986},{"slug":"epoxy-green","name":"Epoxy Green","hex":"#4E8A57","distance":57.148928248918196},{"slug":"lime-green","name":"Lime Green","hex":"#32CD32","distance":58.18934610390462}]

HEX meaning and use

About #51C262

#51C262 is classified as a cool green value with earth tone visual character. #51C262 is visually closest to Emerald, a named green color with HEX #50C878.

The RGB channels are 81, 194, and 98, with green carrying the strongest channel weight. In HSL, the hue is 129deg with 48% 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 0.4121, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 22.83, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text9.24:1AA Pass
White text2.27:1AA Fail

AA text options: #000000, #1A1A1A.

AAA text options: #000000, #1A1A1A.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #51C262 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000009.24:1 · AAA
White text#FFFFFF2.27:1 · Fail

Accessible Alternatives

#95DAA0#000000 text · best 12.81:1#95DAA0
#38DC50#000000 text · best 11.52:1#38DC50
Lime Green#000000 text · best 9.91:1#32CD32
Paris Green#000000 text · best 9.87:1#50C878
#79C251#000000 text · best 9.65:1#79C251

Generated Palette

#51C262#51C262
#C251B1#C251B1
#79C251#79C251
#51C29B#51C29B
#95DAA0#95DAA0
#30883D#30883D

Color Harmonies

#C251B1#C251B1
#79C251#79C251
#51C29B#51C29B
#6251C2#6251C2
#C26251#C26251

Variants

#95DAA0#95DAA0
#30883D#30883D
#38DC50#38DC50
#6BA874#6BA874
#B8DBBD#B8DBBD
#3DFF5A#3DFF5A

Nearest Named Colors