HEX atlas value

#668F32

#668F32 is a cool green HEX color close to Olive Drab. According to Colors Encyclopedia, it converts to RGB 102, 143, 50, HSL 86, 48%, 38%, has luminance 0.227, and belongs to the earth tone and jewel tone groups.

green cool earth-tone jewel-tone

#668F32 Sample readable text

HEX #668F32

RGB rgb(102, 143, 50)

HSL hsl(86 48% 38%)

CMYK cmyk(29, 0, 65, 44)

Luminance 0.227

Contrast Black 5.54:1White 3.79:1

CSS

--color-668f32: #668F32;
.background-668f32 { background-color: #668F32; }
.text-668f32 { color: #668F32; }

Luminance0.227

Black text5.54:1AA Pass

White text3.79:1AA 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":"#668F32","rgb":[102,143,50],"hsl":[86,48,38],"cmyk":[29,0,65,44],"luminance":0.227,"contrast":{"black":5.54,"white":3.79}}

WCAG

{"AA":["#000000","#1A1A1A"],"AAA":[]}

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":5.54,"wcagAA":true,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":3.79,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"#96C559","hex":"#96C559","family":"green","bestTextColor":"#000000","contrastBlack":10.43,"contrastWhite":2.01,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#364B1B","hex":"#364B1B","family":"green","bestTextColor":"#FFFFFF","contrastBlack":2.18,"contrastWhite":9.63,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#5B328F","hex":"#5B328F","family":"purple","bestTextColor":"#FFFFFF","contrastBlack":2.3,"contrastWhite":9.14,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#6AA51D","hex":"#6AA51D","family":"green","bestTextColor":"#000000","contrastBlack":7.01,"contrastWhite":2.99,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000"]},{"name":"#8F8932","hex":"#8F8932","family":"yellow","bestTextColor":"#000000","contrastBlack":5.79,"contrastWhite":3.63,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":[]}]

AI context

{"semanticGroups":["cool green","earth tone","jewel tone","earth tone green","jewel tone green","Olive Drab adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","natural palettes","rich accent palettes","botanical and wellness palettes"],"contrastSafeWith":["#000000","#1A1A1A"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/668f32.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/olive-drab.json","https://www.colorsencyclopedia.com/api/colors/olive-leaf.json","https://www.colorsencyclopedia.com/api/colors/olive-green.json"]}

Harmonies

{"complementary":"#5B328F","analogous":["#8F8932","#398F32"],"triadic":["#32678F","#8F3267"],"tetradic":["#328F89","#5B328F","#8F3239"],"splitComplementary":["#32398F","#89328F"],"monochromatic":["#96C559","#668F32","#364B1B"]}

Variants

{"light":"#96C559","dark":"#364B1B","saturated":"#6AA51D","desaturated":"#647A48","pastel":"#A5C082","neon":"#85EB00"}

Nearest named colors

[{"slug":"olive-drab","name":"Olive Drab","hex":"#6B8E23","distance":15.84297951775486},{"slug":"olive-leaf","name":"Olive Leaf","hex":"#6B8E23","distance":15.84297951775486},{"slug":"olive-green","name":"Olive Green","hex":"#708238","distance":17.46424919657298},{"slug":"fern-frond","name":"Fern Frond","hex":"#657220","distance":34.14674215792775},{"slug":"fern-green","name":"Fern Green","hex":"#4F7942","distance":35.62302626111375}]

HEX meaning and use

About #668F32

#668F32 is classified as a cool green value with earth tone and jewel tone visual character. #668F32 is visually closest to Olive Drab, a named green color with HEX #6B8E23.

The RGB channels are 102, 143, and 50, with green carrying the strongest channel weight. In HSL, the hue is 86deg with 48% 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 0.227, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 15.84, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text5.54:1AA Pass

White text3.79:1AA Fail

AA text options: #000000, #1A1A1A.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #668F32 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000005.54:1 · AA

White text#FFFFFF3.79:1 · Fail

Accessible Alternatives

#96C559#000000 text · best 10.43:1#96C559

#364B1B#FFFFFF text · best 9.63:1#364B1B

#5B328F#FFFFFF text · best 9.14:1#5B328F

#6AA51D#000000 text · best 7.01:1#6AA51D

#8F8932#000000 text · best 5.79:1#8F8932

Generated Palette

#668F32#668F32

#5B328F#5B328F

#8F8932#8F8932

#398F32#398F32

#96C559#96C559

#364B1B#364B1B

Color Harmonies

#5B328F#5B328F

#8F8932#8F8932

#398F32#398F32

#32678F#32678F

#8F3267#8F3267

Variants

#96C559#96C559

#364B1B#364B1B

#6AA51D#6AA51D

#647A48#647A48

#A5C082#A5C082

#85EB00#85EB00

Nearest Named Colors

Olive Drab#6B8E23

Olive Leaf#6B8E23

Olive Green#708238

Fern Frond#657220

Fern Green#4F7942

#668F32

CSS

Machine-Readable HEX Data (JSON)

About #668F32

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides