HEX atlas value

#518565

#518565 is a cool green HEX color close to Epoxy Green. According to Colors Encyclopedia, it converts to RGB 81, 133, 101, HSL 143, 24%, 42%, has luminance 0.1946, and belongs to the muted and earth tone groups.

#518565 Sample readable text
HEX #518565
RGB rgb(81, 133, 101)
HSL hsl(143 24% 42%)
CMYK cmyk(39, 0, 24, 48)
Luminance 0.1946
Contrast Black 4.89:1White 4.29:1

CSS

--color-518565: #518565;
.background-518565 { background-color: #518565; }
.text-518565 { color: #518565; }

Machine-readable data

Machine-Readable HEX Data (JSON)

Structured HEX color data for conversion, WCAG checks, CSS generation, automation, and AI ingestion.

AI-Ready Dataset v1.0.0
Luminance0.1946
Black text4.89:1AA Pass
White text4.29:1AA 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
Download JSON Open API
Structured sections
Color systems
{"hex":"#518565","rgb":[81,133,101],"hsl":[143,24,42],"cmyk":[39,0,24,48],"luminance":0.1946,"contrast":{"black":4.89,"white":4.29}}
WCAG
{"AA":["#000000"],"AAA":[]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":4.89,"wcagAA":true,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":4.29,"wcagAA":false,"wcagAAA":false}]
Accessible alternatives
[{"name":"#2F4C3A","hex":"#2F4C3A","family":"green","bestTextColor":"#FFFFFF","contrastBlack":2.22,"contrastWhite":9.48,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#81B193","hex":"#81B193","family":"green","bestTextColor":"#000000","contrastBlack":8.64,"contrastWhite":2.43,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#855171","hex":"#855171","family":"pink","bestTextColor":"#FFFFFF","contrastBlack":3.41,"contrastWhite":6.15,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":[]},{"name":"#3A9C60","hex":"#3A9C60","family":"green","bestTextColor":"#000000","contrastBlack":6.1,"contrastWhite":3.44,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":[]},{"name":"#696D6B","hex":"#696D6B","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":4,"contrastWhite":5.25,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":[]}]
AI context
{"semanticGroups":["cool green","muted","earth tone","muted green","earth tone green","Epoxy Green adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","muted interface themes","natural palettes","botanical and wellness palettes"],"contrastSafeWith":["#000000"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/518565.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/epoxy-green.json","https://www.colorsencyclopedia.com/api/colors/hookers-green.json","https://www.colorsencyclopedia.com/api/colors/viridian.json"]}
Harmonies
{"complementary":"#855171","analogous":["#578551","#51857F"],"triadic":["#655185","#856551"],"tetradic":["#515785","#855171","#857F51"],"splitComplementary":["#7F5185","#855157"],"monochromatic":["#81B193","#518565","#2F4C3A"]}
Variants
{"light":"#81B193","dark":"#2F4C3A","saturated":"#3A9C60","desaturated":"#696D6B","pastel":"#A3B2A9","neon":"#00FF62"}
Nearest named colors
[{"slug":"epoxy-green","name":"Epoxy Green","hex":"#4E8A57","distance":15.165750888103101},{"slug":"hookers-green","name":"Hookers Green","hex":"#49796B","distance":15.620499351813308},{"slug":"viridian","name":"Viridian","hex":"#40826D","distance":19.026297590440446},{"slug":"eucalyptus","name":"Eucalyptus","hex":"#5F8575","distance":21.2602916254693},{"slug":"alexandrite","name":"Alexandrite","hex":"#3D8B74","distance":25.709920264364882}]

HEX meaning and use

About #518565

#518565 is classified as a cool green value with muted and earth tone visual character. #518565 is visually closest to Epoxy Green, a named green color with HEX #4E8A57.

The RGB channels are 81, 133, and 101, with green carrying the strongest channel weight. In HSL, the hue is 143deg with 24% saturation and 42% 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 muted interface themes. Its luminance is 0.1946, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 15.17, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text4.89:1AA Pass
White text4.29:1AA Fail

AA text options: #000000.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #518565 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000004.89:1 · AA
White text#FFFFFF4.29:1 · Fail

Accessible Alternatives

#2F4C3A#FFFFFF text · best 9.48:1#2F4C3A
#81B193#000000 text · best 8.64:1#81B193
#855171#FFFFFF text · best 6.15:1#855171
#3A9C60#000000 text · best 6.1:1#3A9C60
#696D6B#FFFFFF text · best 5.25:1#696D6B

Generated Palette

#518565#518565
#855171#855171
#578551#578551
#51857F#51857F
#81B193#81B193
#2F4C3A#2F4C3A

Color Harmonies

#855171#855171
#578551#578551
#51857F#51857F
#655185#655185
#856551#856551

Variants

#81B193#81B193
#2F4C3A#2F4C3A
#3A9C60#3A9C60
#696D6B#696D6B
#A3B2A9#A3B2A9
#00FF62#00FF62

Nearest Named Colors