HEX atlas value

#51843E

#51843E is a cool green HEX color close to Fern Green. According to Colors Encyclopedia, it converts to RGB 81, 132, 62, HSL 104, 36%, 38%, has luminance 0.186, and belongs to the earth tone group.

green cool earth-tone

#51843E Sample readable text

HEX #51843E

RGB rgb(81, 132, 62)

HSL hsl(104 36% 38%)

CMYK cmyk(39, 0, 53, 48)

Luminance 0.186

Contrast Black 4.72:1White 4.45:1

CSS

--color-51843e: #51843E;
.background-51843e { background-color: #51843E; }
.text-51843e { color: #51843E; }

Luminance0.186

Black text4.72:1AA Pass

White text4.45:1AA 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":"#51843E","rgb":[81,132,62],"hsl":[104,36,38],"cmyk":[39,0,53,48],"luminance":0.186,"contrast":{"black":4.72,"white":4.45}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":4.72,"wcagAA":true,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":4.45,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"#2A4521","hex":"#2A4521","family":"green","bestTextColor":"#FFFFFF","contrastBlack":1.97,"contrastWhite":10.65,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#7CB766","hex":"#7CB766","family":"green","bestTextColor":"#000000","contrastBlack":8.82,"contrastWhite":2.38,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#713E84","hex":"#713E84","family":"purple","bestTextColor":"#FFFFFF","contrastBlack":2.72,"contrastWhite":7.71,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Dark Olive Green","hex":"#556B2F","family":"green","bestTextColor":"#FFFFFF","contrastBlack":3.53,"contrastWhite":5.95,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":[]},{"name":"#479929","hex":"#479929","family":"green","bestTextColor":"#000000","contrastBlack":5.86,"contrastWhite":3.59,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":[]}]

AI context

{"semanticGroups":["cool green","earth tone","earth tone green","Fern Green adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","natural palettes","botanical and wellness palettes"],"contrastSafeWith":["#000000"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/51843e.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/fern-green.json","https://www.colorsencyclopedia.com/api/colors/epoxy-green.json","https://www.colorsencyclopedia.com/api/colors/dark-olive-green.json"]}

Harmonies

{"complementary":"#713E84","analogous":["#74843E","#3E844E"],"triadic":["#3E5184","#843E51"],"tetradic":["#3E7484","#713E84","#844E3E"],"splitComplementary":["#4E3E84","#843E74"],"monochromatic":["#7CB766","#51843E","#2A4521"]}

Variants

{"light":"#7CB766","dark":"#2A4521","saturated":"#479929","desaturated":"#5B6E53","pastel":"#97B48D","neon":"#3FEB00"}

Nearest named colors

[{"slug":"fern-green","name":"Fern Green","hex":"#4F7942","distance":11.874342087037917},{"slug":"epoxy-green","name":"Epoxy Green","hex":"#4E8A57","distance":25.88435821108957},{"slug":"dark-olive-green","name":"Dark Olive Green","hex":"#556B2F","distance":29.427877939124322},{"slug":"cactus-green","name":"Cactus Green","hex":"#587156","distance":31.400636936215164},{"slug":"olive-green","name":"Olive Green","hex":"#708238","distance":31.63858403911275}]

HEX meaning and use

About #51843E

#51843E is classified as a cool green value with earth tone visual character. #51843E is visually closest to Fern Green, a named green color with HEX #4F7942.

The RGB channels are 81, 132, and 62, with green carrying the strongest channel weight. In HSL, the hue is 104deg with 36% saturation and 38% lightness, so this page treats it as a moderate-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 0.186, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 11.87, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text4.72:1AA Pass

White text4.45:1AA Fail

AA text options: #000000.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #51843E needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000004.72:1 · AA

White text#FFFFFF4.45:1 · Fail

Accessible Alternatives

#2A4521#FFFFFF text · best 10.65:1#2A4521

#7CB766#000000 text · best 8.82:1#7CB766

#713E84#FFFFFF text · best 7.71:1#713E84

Dark Olive Green#FFFFFF text · best 5.95:1#556B2F

#479929#000000 text · best 5.86:1#479929

Generated Palette

#51843E#51843E

#713E84#713E84

#74843E#74843E

#3E844E#3E844E

#7CB766#7CB766

#2A4521#2A4521

Color Harmonies

#713E84#713E84

#74843E#74843E

#3E844E#3E844E

#3E5184#3E5184

#843E51#843E51

Variants

#7CB766#7CB766

#2A4521#2A4521

#479929#479929

#5B6E53#5B6E53

#97B48D#97B48D

#3FEB00#3FEB00

Nearest Named Colors

Fern Green#4F7942

Epoxy Green#4E8A57

Dark Olive Green#556B2F

Cactus Green#587156

Olive Green#708238

#51843E

CSS

Machine-Readable HEX Data (JSON)

About #51843E

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides