HEX atlas value

#647637

#647637 is a cool green HEX color close to Olive Green. According to Colors Encyclopedia, it converts to RGB 100, 118, 55, HSL 77, 36%, 34%, has luminance 0.1594, and belongs to the earth tone group.

green cool earth-tone

#647637 Sample readable text

HEX #647637

RGB rgb(100, 118, 55)

HSL hsl(77 36% 34%)

CMYK cmyk(15, 0, 53, 54)

Luminance 0.1594

Contrast Black 4.19:1White 5.01:1

CSS

--color-647637: #647637;
.background-647637 { background-color: #647637; }
.text-647637 { color: #647637; }

Luminance0.1594

Black text4.19:1AA Fail

White text5.01:1AA 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":"#647637","rgb":[100,118,55],"hsl":[77,36,34],"cmyk":[15,0,53,54],"luminance":0.1594,"contrast":{"black":4.19,"white":5.01}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":4.19,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":5.01,"wcagAA":true,"wcagAAA":false}]

Accessible alternatives

[{"name":"#2F371A","hex":"#2F371A","family":"green","bestTextColor":"#FFFFFF","contrastBlack":1.68,"contrastWhite":12.49,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#493776","hex":"#493776","family":"purple","bestTextColor":"#FFFFFF","contrastBlack":2.09,"contrastWhite":10.04,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#98B159","hex":"#98B159","family":"green","bestTextColor":"#000000","contrastBlack":8.77,"contrastWhite":2.4,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#5C634B","hex":"#5C634B","family":"green","bestTextColor":"#FFFFFF","contrastBlack":3.34,"contrastWhite":6.28,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":[]},{"name":"Dark Olive Green","hex":"#556B2F","family":"green","bestTextColor":"#FFFFFF","contrastBlack":3.53,"contrastWhite":5.95,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":[]}]

AI context

{"semanticGroups":["cool green","earth tone","earth tone green","Olive Green adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","natural palettes","botanical and wellness palettes"],"contrastSafeWith":["#FFFFFF","#F5F5F5"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/647637.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/olive-green.json","https://www.colorsencyclopedia.com/api/colors/dark-olive-green.json","https://www.colorsencyclopedia.com/api/colors/fern-frond.json"]}

Harmonies

{"complementary":"#493776","analogous":["#766837","#457637"],"triadic":["#376476","#763764"],"tetradic":["#377668","#493776","#763745"],"splitComplementary":["#374576","#683776"],"monochromatic":["#98B159","#647637","#2F371A"]}

Variants

{"light":"#98B159","dark":"#2F371A","saturated":"#6C8924","desaturated":"#5C634B","pastel":"#A0AC80","neon":"#9AD600"}

Nearest named colors

[{"slug":"olive-green","name":"Olive Green","hex":"#708238","distance":17},{"slug":"dark-olive-green","name":"Dark Olive Green","hex":"#556B2F","distance":20.248456731316587},{"slug":"fern-frond","name":"Fern Frond","hex":"#657220","distance":23.366642891095847},{"slug":"fern-green","name":"Fern Green","hex":"#4F7942","distance":23.895606290697042},{"slug":"olive-drab","name":"Olive Drab","hex":"#6B8E23","distance":32.01562118716424}]

HEX meaning and use

About #647637

#647637 is classified as a cool green value with earth tone visual character. #647637 is visually closest to Olive Green, a named green color with HEX #708238.

The RGB channels are 100, 118, and 55, with green carrying the strongest channel weight. In HSL, the hue is 77deg with 36% saturation and 34% 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 0.1594, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 17.00, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text4.19:1AA Fail

White text5.01:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #647637 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000004.19:1 · Fail

White text#FFFFFF5.01:1 · AA

Accessible Alternatives

#2F371A#FFFFFF text · best 12.49:1#2F371A

#493776#FFFFFF text · best 10.04:1#493776

#98B159#000000 text · best 8.77:1#98B159

#5C634B#FFFFFF text · best 6.28:1#5C634B

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

Generated Palette

#647637#647637

#493776#493776

#766837#766837

#457637#457637

#98B159#98B159

#2F371A#2F371A

Color Harmonies

#493776#493776

#766837#766837

#457637#457637

#376476#376476

#763764#763764

Variants

#98B159#98B159

#2F371A#2F371A

#6C8924#6C8924

#5C634B#5C634B

#A0AC80#A0AC80

#9AD600#9AD600

Nearest Named Colors

Olive Green#708238

Dark Olive Green#556B2F

Fern Frond#657220

Fern Green#4F7942

Olive Drab#6B8E23

#647637

CSS

Machine-Readable HEX Data (JSON)

About #647637

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides