HEX atlas value

#566C42

#566C42 is a cool green HEX color close to Fern Green. According to Colors Encyclopedia, it converts to RGB 86, 108, 66, HSL 91, 24%, 34%, has luminance 0.131, and belongs to the muted and earth tone groups.

green cool muted earth-tone

#566C42 Sample readable text

HEX #566C42

RGB rgb(86, 108, 66)

HSL hsl(91 24% 34%)

CMYK cmyk(20, 0, 39, 58)

Luminance 0.131

Contrast Black 3.62:1White 5.8:1

CSS

--color-566c42: #566C42;
.background-566c42 { background-color: #566C42; }
.text-566c42 { color: #566C42; }

Luminance0.131

Black text3.62:1AA Fail

White text5.8:1AA Pass

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":"#566C42","rgb":[86,108,66],"hsl":[91,24,34],"cmyk":[20,0,39,58],"luminance":0.131,"contrast":{"black":3.62,"white":5.8}}

WCAG

{"AA":["#FFFFFF","#F5F5F5"],"AAA":[]}

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":3.62,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":5.8,"wcagAA":true,"wcagAAA":false}]

Accessible alternatives

[{"name":"#28331F","hex":"#28331F","family":"green","bestTextColor":"#FFFFFF","contrastBlack":1.58,"contrastWhite":13.26,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#57426C","hex":"#57426C","family":"purple","bestTextColor":"#FFFFFF","contrastBlack":2.4,"contrastWhite":8.74,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Basalt","hex":"#4B4C4C","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":2.44,"contrastWhite":8.61,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Umber","hex":"#635147","family":"orange","bestTextColor":"#FFFFFF","contrastBlack":2.8,"contrastWhite":7.51,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF"]},{"name":"#84A267","hex":"#84A267","family":"green","bestTextColor":"#000000","contrastBlack":7.35,"contrastWhite":2.86,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000"]}]

AI context

{"semanticGroups":["cool green","muted","earth tone","muted green","earth tone green","Fern Green adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","muted interface themes","natural palettes","botanical and wellness palettes"],"contrastSafeWith":["#FFFFFF","#F5F5F5"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/566c42.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/fern-green.json","https://www.colorsencyclopedia.com/api/colors/dark-olive-green.json","https://www.colorsencyclopedia.com/api/colors/cactus-green.json"]}

Harmonies

{"complementary":"#57426C","analogous":["#6B6C42","#426C43"],"triadic":["#42566C","#6C4256"],"tetradic":["#426B6C","#57426C","#6C4342"],"splitComplementary":["#43426C","#6C426B"],"monochromatic":["#84A267","#566C42","#28331F"]}

Variants

{"light":"#84A267","dark":"#28331F","saturated":"#557F2F","desaturated":"#575855","pastel":"#96A08D","neon":"#68D600"}

Nearest named colors

[{"slug":"fern-green","name":"Fern Green","hex":"#4F7942","distance":14.7648230602334},{"slug":"dark-olive-green","name":"Dark Olive Green","hex":"#556B2F","distance":19.05255888325765},{"slug":"cactus-green","name":"Cactus Green","hex":"#587156","distance":20.71231517720798},{"slug":"umber","name":"Umber","hex":"#635147","distance":30.380915061926625},{"slug":"basalt","name":"Basalt","hex":"#4B4C4C","distance":35.2845575287547}]

HEX meaning and use

About #566C42

#566C42 is classified as a cool green value with muted and earth tone visual character. #566C42 is visually closest to Fern Green, a named green color with HEX #4F7942.

The RGB channels are 86, 108, and 66, with green carrying the strongest channel weight. In HSL, the hue is 91deg with 24% saturation and 34% 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 0.131, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 14.76, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text3.62:1AA Fail

White text5.8:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #566C42 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000003.62:1 · Fail

White text#FFFFFF5.8:1 · AA

Accessible Alternatives

#28331F#FFFFFF text · best 13.26:1#28331F

#57426C#FFFFFF text · best 8.74:1#57426C

Basalt#FFFFFF text · best 8.61:1#4B4C4C

Umber#FFFFFF text · best 7.51:1#635147

#84A267#000000 text · best 7.35:1#84A267

Generated Palette

#566C42#566C42

#57426C#57426C

#6B6C42#6B6C42

#426C43#426C43

#84A267#84A267

#28331F#28331F

Color Harmonies

#57426C#57426C

#6B6C42#6B6C42

#426C43#426C43

#42566C#42566C

#6C4256#6C4256

Variants

#84A267#84A267

#28331F#28331F

#557F2F#557F2F

#575855#575855

#96A08D#96A08D

#68D600#68D600

Nearest Named Colors

Fern Green#4F7942

Dark Olive Green#556B2F

Cactus Green#587156

Umber#635147

Basalt#4B4C4C

#566C42

CSS

Machine-Readable HEX Data (JSON)

About #566C42

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides