HEX atlas value

#51855C

#51855C is a cool green HEX color close to Epoxy Green. According to Colors Encyclopedia, it converts to RGB 81, 133, 92, HSL 133, 24%, 42%, has luminance 0.193, and belongs to the muted and earth tone groups.

green cool muted earth-tone

#51855C Sample readable text

HEX #51855C

RGB rgb(81, 133, 92)

HSL hsl(133 24% 42%)

CMYK cmyk(39, 0, 31, 48)

Luminance 0.193

Contrast Black 4.86:1White 4.32:1

CSS

--color-51855c: #51855C;
.background-51855c { background-color: #51855C; }
.text-51855c { color: #51855C; }

Luminance0.193

Black text4.86:1AA Pass

White text4.32:1AA 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":"#51855C","rgb":[81,133,92],"hsl":[133,24,42],"cmyk":[39,0,31,48],"luminance":0.193,"contrast":{"black":4.86,"white":4.32}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":4.86,"wcagAA":true,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":4.32,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"#2F4C35","hex":"#2F4C35","family":"green","bestTextColor":"#FFFFFF","contrastBlack":2.21,"contrastWhite":9.52,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#81B18B","hex":"#81B18B","family":"green","bestTextColor":"#000000","contrastBlack":8.6,"contrastWhite":2.44,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#85517A","hex":"#85517A","family":"pink","bestTextColor":"#FFFFFF","contrastBlack":3.46,"contrastWhite":6.08,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":[]},{"name":"#3A9C4F","hex":"#3A9C4F","family":"green","bestTextColor":"#000000","contrastBlack":6.05,"contrastWhite":3.47,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":[]},{"name":"Cactus Green","hex":"#587156","family":"green","bestTextColor":"#FFFFFF","contrastBlack":3.91,"contrastWhite":5.37,"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/51855c.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/cactus-green.json"]}

Harmonies

{"complementary":"#85517A","analogous":["#608551","#518576"],"triadic":["#5D5185","#855D51"],"tetradic":["#516085","#85517A","#857651"],"splitComplementary":["#765185","#855160"],"monochromatic":["#81B18B","#51855C","#2F4C35"]}

Variants

{"light":"#81B18B","dark":"#2F4C35","saturated":"#3A9C4F","desaturated":"#696D6A","pastel":"#A3B2A7","neon":"#00FF37"}

Nearest named colors

[{"slug":"epoxy-green","name":"Epoxy Green","hex":"#4E8A57","distance":7.681145747868608},{"slug":"hookers-green","name":"Hookers Green","hex":"#49796B","distance":20.808652046684813},{"slug":"cactus-green","name":"Cactus Green","hex":"#587156","distance":22.02271554554524},{"slug":"viridian","name":"Viridian","hex":"#40826D","distance":24.228082879171435},{"slug":"eucalyptus","name":"Eucalyptus","hex":"#5F8575","distance":28.653097563788805}]

HEX meaning and use

About #51855C

#51855C is classified as a cool green value with muted and earth tone visual character. #51855C is visually closest to Epoxy Green, a named green color with HEX #4E8A57.

The RGB channels are 81, 133, and 92, with green carrying the strongest channel weight. In HSL, the hue is 133deg 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 0.193, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 7.68, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text4.86:1AA Pass

White text4.32:1AA Fail

AA text options: #000000.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #51855C needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000004.86:1 · AA

White text#FFFFFF4.32:1 · Fail

Accessible Alternatives

#2F4C35#FFFFFF text · best 9.52:1#2F4C35

#81B18B#000000 text · best 8.6:1#81B18B

#85517A#FFFFFF text · best 6.08:1#85517A

#3A9C4F#000000 text · best 6.05:1#3A9C4F

Cactus Green#FFFFFF text · best 5.37:1#587156

Generated Palette

#51855C#51855C

#85517A#85517A

#608551#608551

#518576#518576

#81B18B#81B18B

#2F4C35#2F4C35

Color Harmonies

#85517A#85517A

#608551#608551

#518576#518576

#5D5185#5D5185

#855D51#855D51

Variants

#81B18B#81B18B

#2F4C35#2F4C35

#3A9C4F#3A9C4F

#696D6A#696D6A

#A3B2A7#A3B2A7

#00FF37#00FF37

Nearest Named Colors

Epoxy Green#4E8A57

Hookers Green#49796B

Cactus Green#587156

Viridian#40826D

Eucalyptus#5F8575

#51855C

CSS

Machine-Readable HEX Data (JSON)

About #51855C

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides