HEX atlas value

#64C251

#64C251 is a cool green HEX color close to Emerald. According to Colors Encyclopedia, it converts to RGB 100, 194, 81, HSL 110, 48%, 54%, has luminance 0.4189, and belongs to the earth tone group.

green cool earth-tone

#64C251 Sample readable text

HEX #64C251

RGB rgb(100, 194, 81)

HSL hsl(110 48% 54%)

CMYK cmyk(48, 0, 58, 24)

Luminance 0.4189

Contrast Black 9.38:1White 2.24:1

CSS

--color-64c251: #64C251;
.background-64c251 { background-color: #64C251; }
.text-64c251 { color: #64C251; }

Luminance0.4189

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":"#64C251","rgb":[100,194,81],"hsl":[110,48,54],"cmyk":[48,0,58,24],"luminance":0.4189,"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":"#A1DA95","hex":"#A1DA95","family":"green","bestTextColor":"#000000","contrastBlack":12.98,"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":"#53DC38","hex":"#53DC38","family":"green","bestTextColor":"#000000","contrastBlack":11.66,"contrastWhite":1.8,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#9CC251","hex":"#9CC251","family":"green","bestTextColor":"#000000","contrastBlack":10.25,"contrastWhite":2.05,"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"]}]

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/64c251.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/toxic-green.json"]}

Harmonies

{"complementary":"#AF51C2","analogous":["#9CC251","#51C277"],"triadic":["#5164C2","#C25164"],"tetradic":["#519CC2","#AF51C2","#C27751"],"splitComplementary":["#7751C2","#C2519C"],"monochromatic":["#A1DA95","#64C251","#3E8830"]}

Variants

{"light":"#A1DA95","dark":"#3E8830","saturated":"#53DC38","desaturated":"#75A86B","pastel":"#BEDBB8","neon":"#5EFF3D"}

Nearest named colors

[{"slug":"emerald","name":"Emerald","hex":"#50C878","distance":44.23799272118933},{"slug":"paris-green","name":"Paris Green","hex":"#50C878","distance":44.23799272118933},{"slug":"toxic-green","name":"Toxic Green","hex":"#61DE2A","distance":48.104053883222775},{"slug":"medium-sea-green","name":"Medium Sea Green","hex":"#3CB371","distance":53.376024580330075},{"slug":"moss-green","name":"Moss Green","hex":"#8A9A5B","distance":56.07138307550475}]

HEX meaning and use

About #64C251

#64C251 is classified as a cool green value with earth tone visual character. #64C251 is visually closest to Emerald, a named green color with HEX #50C878.

The RGB channels are 100, 194, and 81, with green carrying the strongest channel weight. In HSL, the hue is 110deg 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 0.4189, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 44.24, 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 #64C251 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000009.38:1 · AAA

White text#FFFFFF2.24:1 · Fail

Accessible Alternatives

#A1DA95#000000 text · best 12.98:1#A1DA95

Toxic Green#000000 text · best 11.99:1#61DE2A

#53DC38#000000 text · best 11.66:1#53DC38

#9CC251#000000 text · best 10.25:1#9CC251

Paris Green#000000 text · best 9.87:1#50C878

Generated Palette

#64C251#64C251

#AF51C2#AF51C2

#9CC251#9CC251

#51C277#51C277

#A1DA95#A1DA95

#3E8830#3E8830

Color Harmonies

#AF51C2#AF51C2

#9CC251#9CC251

#51C277#51C277

#5164C2#5164C2

#C25164#C25164

Variants

#A1DA95#A1DA95

#3E8830#3E8830

#53DC38#53DC38

#75A86B#75A86B

#BEDBB8#BEDBB8

#5EFF3D#5EFF3D

Nearest Named Colors

Emerald#50C878

Paris Green#50C878

Toxic Green#61DE2A

Medium Sea Green#3CB371

Moss Green#8A9A5B

#64C251

CSS

Machine-Readable HEX Data (JSON)

About #64C251

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides