HEX atlas value

#66A04B

#66A04B is a cool green HEX color close to Epoxy Green. According to Colors Encyclopedia, it converts to RGB 102, 160, 75, HSL 101, 36%, 46%, has luminance 0.2847, and belongs to the earth tone group.

green cool earth-tone

#66A04B Sample readable text

HEX #66A04B

RGB rgb(102, 160, 75)

HSL hsl(101 36% 46%)

CMYK cmyk(36, 0, 53, 37)

Luminance 0.2847

Contrast Black 6.69:1White 3.14:1

CSS

--color-66a04b: #66A04B;
.background-66a04b { background-color: #66A04B; }
.text-66a04b { color: #66A04B; }

Luminance0.2847

Black text6.69:1AA Pass

White text3.14:1AA 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

Structured sections

Color systems

{"hex":"#66A04B","rgb":[102,160,75],"hsl":[101,36,46],"cmyk":[36,0,53,37],"luminance":0.2847,"contrast":{"black":6.69,"white":3.14}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":6.69,"wcagAA":true,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":3.14,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"#97C482","hex":"#97C482","family":"green","bestTextColor":"#000000","contrastBlack":10.53,"contrastWhite":1.99,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#5CB931","hex":"#5CB931","family":"green","bestTextColor":"#000000","contrastBlack":8.44,"contrastWhite":2.49,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#90A04B","hex":"#90A04B","family":"green","bestTextColor":"#000000","contrastBlack":7.32,"contrastWhite":2.87,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000"]},{"name":"#3E612E","hex":"#3E612E","family":"green","bestTextColor":"#FFFFFF","contrastBlack":2.95,"contrastWhite":7.11,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF"]},{"name":"Moss Green","hex":"#8A9A5B","family":"green","bestTextColor":"#000000","contrastBlack":6.85,"contrastWhite":3.06,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":[]}]

AI context

{"semanticGroups":["cool green","earth tone","earth tone green","Epoxy 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/66a04b.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/epoxy-green.json","https://www.colorsencyclopedia.com/api/colors/olive-green.json","https://www.colorsencyclopedia.com/api/colors/moss-green.json"]}

Harmonies

{"complementary":"#854BA0","analogous":["#90A04B","#4BA05B"],"triadic":["#4B66A0","#A04B66"],"tetradic":["#4B90A0","#854BA0","#A05B4B"],"splitComplementary":["#5B4BA0","#A04B90"],"monochromatic":["#97C482","#66A04B","#3E612E"]}

Variants

{"light":"#97C482","dark":"#3E612E","saturated":"#5CB931","desaturated":"#6F8665","pastel":"#AFC5A6","neon":"#5FFF14"}

Nearest named colors

[{"slug":"epoxy-green","name":"Epoxy Green","hex":"#4E8A57","distance":34.698703145794944},{"slug":"olive-green","name":"Olive Green","hex":"#708238","distance":36.89173349139343},{"slug":"moss-green","name":"Moss Green","hex":"#8A9A5B","distance":39.84971769034255},{"slug":"agave","name":"Agave","hex":"#6F8F72","distance":43.485629810317796},{"slug":"olive-drab","name":"Olive Drab","hex":"#6B8E23","distance":44.14748010928823}]

HEX meaning and use

About #66A04B

#66A04B is classified as a cool green value with earth tone visual character. #66A04B is visually closest to Epoxy Green, a named green color with HEX #4E8A57.

The RGB channels are 102, 160, and 75, with green carrying the strongest channel weight. In HSL, the hue is 101deg with 36% 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 0.2847, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 34.70, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text6.69:1AA Pass

White text3.14:1AA Fail

AA text options: #000000, #1A1A1A.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #66A04B needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000006.69:1 · AA

White text#FFFFFF3.14:1 · Fail

Accessible Alternatives

#97C482#000000 text · best 10.53:1#97C482

#5CB931#000000 text · best 8.44:1#5CB931

#90A04B#000000 text · best 7.32:1#90A04B

#3E612E#FFFFFF text · best 7.11:1#3E612E

Moss Green#000000 text · best 6.85:1#8A9A5B

Generated Palette

#66A04B#66A04B

#854BA0#854BA0

#90A04B#90A04B

#4BA05B#4BA05B

#97C482#97C482

#3E612E#3E612E

Color Harmonies

#854BA0#854BA0

#90A04B#90A04B

#4BA05B#4BA05B

#4B66A0#4B66A0

#A04B66#A04B66

Variants

#97C482#97C482

#3E612E#3E612E

#5CB931#5CB931

#6F8665#6F8665

#AFC5A6#AFC5A6

#5FFF14#5FFF14

Nearest Named Colors

Epoxy Green#4E8A57

Olive Green#708238

Moss Green#8A9A5B

Agave#6F8F72

Olive Drab#6B8E23

#66A04B

CSS

Machine-Readable HEX Data (JSON)

About #66A04B

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides