HEX atlas value

#66A659

#66A659 is a cool green HEX color nearest Agave. RGB 102, 166, 89, HSL 110° 30% 50%, luminance 0.3082; view contrast and conversions.

green cool earth-tone

#66A659 Sample readable text

HEX #66A659

RGB rgb(102, 166, 89)

HSL hsl(110 30% 50%)

CMYK cmyk(39, 0, 46, 35)

Luminance 0.3082

Contrast Black 7.16:1White 2.93:1

CSS

--color-66a659: #66A659;
.background-66a659 { background-color: #66A659; }
.text-66a659 { color: #66A659; }

HEX meaning and use

About #66A659

#66A659 is classified as a cool green value with earth tone visual character. #66A659 is visually closest to Agave, a named green color with HEX #6F8F72.

The RGB channels are 102, 166, and 89, with green carrying the strongest channel weight. In HSL, the hue is 110deg with 30% saturation and 50% lightness, so this page treats it as a low-saturation, mid-lightness atlas color rather than a generic swatch.

Practical uses for this HEX value include color conversion, WCAG contrast checks, CSS color tokens, and natural palettes. Its luminance is 0.3082, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 35.14, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text7.16:1AA Pass

White text2.93:1AA Fail

AA text options: #000000, #1A1A1A.

AAA text options: #000000.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #66A659 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000007.16:1 · AAA

White text#FFFFFF2.93:1 · Fail

Accessible Alternatives

#9DC695#9DC695 · #000000 text · best 10.95:1 #53C23D#53C23D · #000000 text · best 9.15:1 #8CA659#8CA659 · #000000 text · best 7.71:1 #59A673#59A673 · #000000 text · best 7.13:1 Moss Green#8A9A5B · #000000 text · best 6.85:1

Generated Palette

#66A659#66A659

#9959A6#9959A6

#8CA659#8CA659

#59A673#59A673

#9DC695#9DC695

#416A39#416A39

Color Harmonies

#9959A6#9959A6

#8CA659#8CA659

#59A673#59A673

#5966A6#5966A6

#A65966#A65966

Variants

#9DC695#9DC695

#416A39#416A39

#53C23D#53C23D

#798A75#798A75

#B9C9B6#B9C9B6

#4DFF29#4DFF29

Nearest Named Colors

Agave#6F8F72

Epoxy Green#4E8A57

Moss Green#8A9A5B

Eucalyptus#5F8575

Smoke#738276

Luminance0.3082

Black text7.16:1AA Pass

White text2.93:1AA 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":"#66A659","rgb":[102,166,89],"hsl":[110,30,50],"cmyk":[39,0,46,35],"luminance":0.3082,"contrast":{"black":7.16,"white":2.93}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":7.16,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":2.93,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"#9DC695","hex":"#9DC695","family":"green","bestTextColor":"#000000","contrastBlack":10.95,"contrastWhite":1.92,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#53C23D","hex":"#53C23D","family":"green","bestTextColor":"#000000","contrastBlack":9.15,"contrastWhite":2.29,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#8CA659","hex":"#8CA659","family":"green","bestTextColor":"#000000","contrastBlack":7.71,"contrastWhite":2.72,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000"]},{"name":"#59A673","hex":"#59A673","family":"green","bestTextColor":"#000000","contrastBlack":7.13,"contrastWhite":2.95,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000"]},{"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","Agave 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/66a659.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/agave.json","https://www.colorsencyclopedia.com/api/colors/epoxy-green.json","https://www.colorsencyclopedia.com/api/colors/moss-green.json"]}

Harmonies

{"complementary":"#9959A6","analogous":["#8CA659","#59A673"],"triadic":["#5966A6","#A65966"],"tetradic":["#598CA6","#9959A6","#A67359"],"splitComplementary":["#7359A6","#A6598C"],"monochromatic":["#9DC695","#66A659","#416A39"]}

Variants

{"light":"#9DC695","dark":"#416A39","saturated":"#53C23D","desaturated":"#798A75","pastel":"#B9C9B6","neon":"#4DFF29"}

Nearest named colors

[{"slug":"agave","name":"Agave","hex":"#6F8F72","distance":35.14256678161116},{"slug":"epoxy-green","name":"Epoxy Green","hex":"#4E8A57","distance":36.932370625238775},{"slug":"moss-green","name":"Moss Green","hex":"#8A9A5B","distance":38},{"slug":"eucalyptus","name":"Eucalyptus","hex":"#5F8575","distance":43.840620433565945},{"slug":"smoke","name":"Smoke","hex":"#738276","distance":48.02082881417188}]

#66A659

CSS

About #66A659

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Machine-Readable HEX Data (JSON)

Related HEX Guides