HEX atlas value

#66C94A

#66C94A is a cool green HEX color close to Toxic Green. According to Colors Encyclopedia, it converts to RGB 102, 201, 74, HSL 107, 54%, 54%, has luminance 0.4509, and belongs to the earth tone group.

green cool earth-tone

#66C94A Sample readable text

HEX #66C94A

RGB rgb(102, 201, 74)

HSL hsl(107 54% 54%)

CMYK cmyk(49, 0, 63, 21)

Luminance 0.4509

Contrast Black 10.02:1White 2.1:1

CSS

--color-66c94a: #66C94A;
.background-66c94a { background-color: #66C94A; }
.text-66c94a { color: #66C94A; }

Luminance0.4509

Black text10.02:1AA Pass

White text2.1:1AA 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":"#66C94A","rgb":[102,201,74],"hsl":[107,54,54],"cmyk":[49,0,63,21],"luminance":0.4509,"contrast":{"black":10.02,"white":2.1}}

WCAG

{"AA":["#000000","#1A1A1A","#36454F"],"AAA":["#000000","#1A1A1A"]}

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":10.02,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":2.1,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"#A2DE91","hex":"#A2DE91","family":"green","bestTextColor":"#000000","contrastBlack":13.39,"contrastWhite":1.57,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#57E331","hex":"#57E331","family":"green","bestTextColor":"#000000","contrastBlack":12.44,"contrastWhite":1.69,"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":"Yellow Green","hex":"#9ACD32","family":"green","bestTextColor":"#000000","contrastBlack":11.15,"contrastWhite":1.88,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#A5C94A","hex":"#A5C94A","family":"green","bestTextColor":"#000000","contrastBlack":11.05,"contrastWhite":1.9,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]}]

AI context

{"semanticGroups":["cool green","earth tone","earth tone green","Toxic 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/66c94a.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/toxic-green.json","https://www.colorsencyclopedia.com/api/colors/emerald.json","https://www.colorsencyclopedia.com/api/colors/paris-green.json"]}

Harmonies

{"complementary":"#AE4AC9","analogous":["#A5C94A","#4AC96E"],"triadic":["#4A66C9","#C94A66"],"tetradic":["#4AA5C9","#AE4AC9","#C96E4A"],"splitComplementary":["#6E4AC9","#C94AA5"],"monochromatic":["#A2DE91","#66C94A","#408D2A"]}

Variants

{"light":"#A2DE91","dark":"#408D2A","saturated":"#57E331","desaturated":"#74AF64","pastel":"#BEDEB5","neon":"#67FF3D"}

Nearest named colors

[{"slug":"toxic-green","name":"Toxic Green","hex":"#61DE2A","distance":38.600518131237564},{"slug":"emerald","name":"Emerald","hex":"#50C878","distance":51},{"slug":"paris-green","name":"Paris Green","hex":"#50C878","distance":51},{"slug":"lime-green","name":"Lime Green","hex":"#32CD32","distance":57.41080037762929},{"slug":"yellow-green","name":"Yellow Green","hex":"#9ACD32","distance":57.41080037762929}]

HEX meaning and use

About #66C94A

#66C94A is classified as a cool green value with earth tone visual character. #66C94A is visually closest to Toxic Green, a named green color with HEX #61DE2A.

The RGB channels are 102, 201, and 74, with green carrying the strongest channel weight. In HSL, the hue is 107deg 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 0.4509, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 38.60, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text10.02:1AA Pass

White text2.1:1AA Fail

AA text options: #000000, #1A1A1A, #36454F.

AAA text options: #000000, #1A1A1A.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #66C94A needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#00000010.02:1 · AAA

White text#FFFFFF2.1:1 · Fail

Accessible Alternatives

#A2DE91#000000 text · best 13.39:1#A2DE91

#57E331#000000 text · best 12.44:1#57E331

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

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

#A5C94A#000000 text · best 11.05:1#A5C94A

Generated Palette

#66C94A#66C94A

#AE4AC9#AE4AC9

#A5C94A#A5C94A

#4AC96E#4AC96E

#A2DE91#A2DE91

#408D2A#408D2A

Color Harmonies

#AE4AC9#AE4AC9

#A5C94A#A5C94A

#4AC96E#4AC96E

#4A66C9#4A66C9

#C94A66#C94A66

Variants

#A2DE91#A2DE91

#408D2A#408D2A

#57E331#57E331

#74AF64#74AF64

#BEDEB5#BEDEB5

#67FF3D#67FF3D

Nearest Named Colors

Toxic Green#61DE2A

Emerald#50C878

Paris Green#50C878

Lime Green#32CD32

Yellow Green#9ACD32

#66C94A

CSS

Machine-Readable HEX Data (JSON)

About #66C94A

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides