HEX atlas value

#637B32

#637B32 is a cool green HEX color close to Olive Green. According to Colors Encyclopedia, it converts to RGB 99, 123, 50, HSL 80, 42%, 34%, has luminance 0.1705, and belongs to the earth tone group.

green cool earth-tone

#637B32 Sample readable text

HEX #637B32

RGB rgb(99, 123, 50)

HSL hsl(80 42% 34%)

CMYK cmyk(20, 0, 59, 52)

Luminance 0.1705

Contrast Black 4.41:1White 4.76:1

CSS

--color-637b32: #637B32;
.background-637b32 { background-color: #637B32; }
.text-637b32 { color: #637B32; }

Luminance0.1705

Black text4.41:1AA Fail

White text4.76:1AA 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":"#637B32","rgb":[99,123,50],"hsl":[80,42,34],"cmyk":[20,0,59,52],"luminance":0.1705,"contrast":{"black":4.41,"white":4.76}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":4.41,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":4.76,"wcagAA":true,"wcagAAA":false}]

Accessible alternatives

[{"name":"#2F3A18","hex":"#2F3A18","family":"green","bestTextColor":"#FFFFFF","contrastBlack":1.74,"contrastWhite":12.07,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#4B327B","hex":"#4B327B","family":"purple","bestTextColor":"#FFFFFF","contrastBlack":2.04,"contrastWhite":10.28,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#96B851","hex":"#96B851","family":"green","bestTextColor":"#000000","contrastBlack":9.27,"contrastWhite":2.26,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#5C6845","hex":"#5C6845","family":"green","bestTextColor":"#FFFFFF","contrastBlack":3.52,"contrastWhite":5.96,"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"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/637b32.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/olive-green.json","https://www.colorsencyclopedia.com/api/colors/fern-frond.json","https://www.colorsencyclopedia.com/api/colors/dark-olive-green.json"]}

Harmonies

{"complementary":"#4B327B","analogous":["#7B6F32","#3E7B32"],"triadic":["#32637B","#7B3263"],"tetradic":["#327B6F","#4B327B","#7B323E"],"splitComplementary":["#323E7B","#6F327B"],"monochromatic":["#96B851","#637B32","#2F3A18"]}

Variants

{"light":"#96B851","dark":"#2F3A18","saturated":"#698E1F","desaturated":"#5C6845","pastel":"#A0B37A","neon":"#8FD600"}

Nearest named colors

[{"slug":"olive-green","name":"Olive Green","hex":"#708238","distance":15.937377450509228},{"slug":"fern-frond","name":"Fern Frond","hex":"#657220","distance":20.223748416156685},{"slug":"dark-olive-green","name":"Dark Olive Green","hex":"#556B2F","distance":21.470910553583888},{"slug":"olive-drab","name":"Olive Drab","hex":"#6B8E23","distance":25.495097567963924},{"slug":"olive-leaf","name":"Olive Leaf","hex":"#6B8E23","distance":25.495097567963924}]

HEX meaning and use

About #637B32

#637B32 is classified as a cool green value with earth tone visual character. #637B32 is visually closest to Olive Green, a named green color with HEX #708238.

The RGB channels are 99, 123, and 50, with green carrying the strongest channel weight. In HSL, the hue is 80deg with 42% 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 0.1705, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 15.94, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text4.41:1AA Fail

White text4.76:1AA Pass

AA text options: #FFFFFF.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #637B32 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000004.41:1 · Fail

White text#FFFFFF4.76:1 · AA

Accessible Alternatives

#2F3A18#FFFFFF text · best 12.07:1#2F3A18

#4B327B#FFFFFF text · best 10.28:1#4B327B

#96B851#000000 text · best 9.27:1#96B851

#5C6845#FFFFFF text · best 5.96:1#5C6845

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

Generated Palette

#637B32#637B32

#4B327B#4B327B

#7B6F32#7B6F32

#3E7B32#3E7B32

#96B851#96B851

#2F3A18#2F3A18

Color Harmonies

#4B327B#4B327B

#7B6F32#7B6F32

#3E7B32#3E7B32

#32637B#32637B

#7B3263#7B3263

Variants

#96B851#96B851

#2F3A18#2F3A18

#698E1F#698E1F

#5C6845#5C6845

#A0B37A#A0B37A

#8FD600#8FD600

Nearest Named Colors

Olive Green#708238

Fern Frond#657220

Dark Olive Green#556B2F

Olive Drab#6B8E23

Olive Leaf#6B8E23

#637B32

CSS

Machine-Readable HEX Data (JSON)

About #637B32

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides