HEX atlas value

#81BB99

#81BB99 is a cool green HEX color close to Dark Sea Green. According to Colors Encyclopedia, it converts to RGB 129, 187, 153, HSL 145, 30%, 62%, has luminance 0.4251, and belongs to the earth tone group.

green cool earth-tone

#81BB99 Sample readable text

HEX #81BB99

RGB rgb(129, 187, 153)

HSL hsl(145 30% 62%)

CMYK cmyk(31, 0, 18, 27)

Luminance 0.4251

Contrast Black 9.5:1White 2.21:1

CSS

--color-81bb99: #81BB99;
.background-81bb99 { background-color: #81BB99; }
.text-81bb99 { color: #81BB99; }

Luminance0.4251

Black text9.5:1AA Pass

White text2.21:1AA 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":"#81BB99","rgb":[129,187,153],"hsl":[145,30,62],"cmyk":[31,0,18,27],"luminance":0.4251,"contrast":{"black":9.5,"white":2.21}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":9.5,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":2.21,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"#BDDBC9","hex":"#BDDBC9","family":"green","bestTextColor":"#000000","contrastBlack":14.14,"contrastWhite":1.49,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#6CD096","hex":"#6CD096","family":"green","bestTextColor":"#000000","contrastBlack":11.1,"contrastWhite":1.89,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"Lichen","hex":"#9BC4A2","family":"green","bestTextColor":"#000000","contrastBlack":10.81,"contrastWhite":1.94,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"Dark Sea Green","hex":"#8FBC8F","family":"green","bestTextColor":"#000000","contrastBlack":9.76,"contrastWhite":2.15,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#81BBB6","hex":"#81BBB6","family":"cyan","bestTextColor":"#000000","contrastBlack":9.72,"contrastWhite":2.16,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]}]

AI context

{"semanticGroups":["cool green","earth tone","earth tone green","Dark Sea 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/81bb99.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/dark-sea-green.json","https://www.colorsencyclopedia.com/api/colors/lichen.json","https://www.colorsencyclopedia.com/api/colors/tourmaline.json"]}

Harmonies

{"complementary":"#BB81A3","analogous":["#86BB81","#81BBB6"],"triadic":["#9981BB","#BB9981"],"tetradic":["#8186BB","#BB81A3","#BBB681"],"splitComplementary":["#B681BB","#BB8186"],"monochromatic":["#BDDBC9","#81BB99","#4F926B"]}

Variants

{"light":"#BDDBC9","dark":"#4F926B","saturated":"#6CD096","desaturated":"#96A69D","pastel":"#D9E3DD","neon":"#66FFA6"}

Nearest named colors

[{"slug":"dark-sea-green","name":"Dark Sea Green","hex":"#8FBC8F","distance":17.233687939614086},{"slug":"lichen","name":"Lichen","hex":"#9BC4A2","distance":28.948229652260256},{"slug":"tourmaline","name":"Tourmaline","hex":"#86A1A9","distance":30.93541659651604},{"slug":"sage-green","name":"Sage Green","hex":"#9CAF88","distance":34.08812109811862},{"slug":"soapstone","name":"Soapstone","hex":"#8D9A91","distance":36.013886210738214}]

HEX meaning and use

About #81BB99

#81BB99 is classified as a cool green value with earth tone visual character. #81BB99 is visually closest to Dark Sea Green, a named green color with HEX #8FBC8F.

The RGB channels are 129, 187, and 153, with green carrying the strongest channel weight. In HSL, the hue is 145deg with 30% saturation and 62% lightness, so this page treats it as a low-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 0.4251, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 17.23, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text9.5:1AA Pass

White text2.21:1AA Fail

AA text options: #000000, #1A1A1A.

AAA text options: #000000, #1A1A1A.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #81BB99 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000009.5:1 · AAA

White text#FFFFFF2.21:1 · Fail

Accessible Alternatives

#BDDBC9#000000 text · best 14.14:1#BDDBC9

#6CD096#000000 text · best 11.1:1#6CD096

Lichen#000000 text · best 10.81:1#9BC4A2

Dark Sea Green#000000 text · best 9.76:1#8FBC8F

#81BBB6#000000 text · best 9.72:1#81BBB6

Generated Palette

#81BB99#81BB99

#BB81A3#BB81A3

#86BB81#86BB81

#81BBB6#81BBB6

#BDDBC9#BDDBC9

#4F926B#4F926B

Color Harmonies

#BB81A3#BB81A3

#86BB81#86BB81

#81BBB6#81BBB6

#9981BB#9981BB

#BB9981#BB9981

Variants

#BDDBC9#BDDBC9

#4F926B#4F926B

#6CD096#6CD096

#96A69D#96A69D

#D9E3DD#D9E3DD

#66FFA6#66FFA6

Nearest Named Colors

Dark Sea Green#8FBC8F

Lichen#9BC4A2

Tourmaline#86A1A9

Sage Green#9CAF88

Soapstone#8D9A91

#81BB99

CSS

Machine-Readable HEX Data (JSON)

About #81BB99

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides