HEX atlas value

#678B4B

#678B4B is a cool green HEX color close to Olive Green. According to Colors Encyclopedia, it converts to RGB 103, 139, 75, HSL 94, 30%, 42%, has luminance 0.2186, and belongs to the earth tone group.

green cool earth-tone

#678B4B Sample readable text

HEX #678B4B

RGB rgb(103, 139, 75)

HSL hsl(94 30% 42%)

CMYK cmyk(26, 0, 46, 45)

Luminance 0.2186

Contrast Black 5.37:1White 3.91:1

CSS

--color-678b4b: #678B4B;
.background-678b4b { background-color: #678B4B; }
.text-678b4b { color: #678B4B; }

Luminance0.2186

Black text5.37:1AA Pass

White text3.91:1AA 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":"#678B4B","rgb":[103,139,75],"hsl":[94,30,42],"cmyk":[26,0,46,45],"luminance":0.2186,"contrast":{"black":5.37,"white":3.91}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":5.37,"wcagAA":true,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":3.91,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"#95B87A","hex":"#95B87A","family":"green","bestTextColor":"#000000","contrastBlack":9.42,"contrastWhite":2.23,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#3B502B","hex":"#3B502B","family":"green","bestTextColor":"#FFFFFF","contrastBlack":2.37,"contrastWhite":8.87,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#6F4B8B","hex":"#6F4B8B","family":"purple","bestTextColor":"#FFFFFF","contrastBlack":3.06,"contrastWhite":6.87,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":[]},{"name":"#64A333","hex":"#64A333","family":"green","bestTextColor":"#000000","contrastBlack":6.83,"contrastWhite":3.08,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":[]},{"name":"Agave","hex":"#6F8F72","family":"green","bestTextColor":"#000000","contrastBlack":5.85,"contrastWhite":3.59,"wcagAA":["#000000","#1A1A1A"],"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":["#000000"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/678b4b.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/olive-green.json","https://www.colorsencyclopedia.com/api/colors/epoxy-green.json","https://www.colorsencyclopedia.com/api/colors/fern-green.json"]}

Harmonies

{"complementary":"#6F4B8B","analogous":["#878B4B","#4B8B4F"],"triadic":["#4B678B","#8B4B67"],"tetradic":["#4B878B","#6F4B8B","#8B4F4B"],"splitComplementary":["#4F4B8B","#8B4B87"],"monochromatic":["#95B87A","#678B4B","#3B502B"]}

Variants

{"light":"#95B87A","dark":"#3B502B","saturated":"#64A333","desaturated":"#6A7463","pastel":"#A9B79E","neon":"#6EFF00"}

Nearest named colors

[{"slug":"olive-green","name":"Olive Green","hex":"#708238","distance":22.869193252058544},{"slug":"epoxy-green","name":"Epoxy Green","hex":"#4E8A57","distance":27.748873851023216},{"slug":"fern-green","name":"Fern Green","hex":"#4F7942","distance":31.32091952673165},{"slug":"cactus-green","name":"Cactus Green","hex":"#587156","distance":31.96873472629156},{"slug":"agave","name":"Agave","hex":"#6F8F72","distance":40.01249804748511}]

HEX meaning and use

About #678B4B

#678B4B is classified as a cool green value with earth tone visual character. #678B4B is visually closest to Olive Green, a named green color with HEX #708238.

The RGB channels are 103, 139, and 75, with green carrying the strongest channel weight. In HSL, the hue is 94deg with 30% 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 natural palettes. Its luminance is 0.2186, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 22.87, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text5.37:1AA Pass

White text3.91:1AA Fail

AA text options: #000000.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #678B4B needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000005.37:1 · AA

White text#FFFFFF3.91:1 · Fail

Accessible Alternatives

#95B87A#000000 text · best 9.42:1#95B87A

#3B502B#FFFFFF text · best 8.87:1#3B502B

#6F4B8B#FFFFFF text · best 6.87:1#6F4B8B

#64A333#000000 text · best 6.83:1#64A333

Agave#000000 text · best 5.85:1#6F8F72

Generated Palette

#678B4B#678B4B

#6F4B8B#6F4B8B

#878B4B#878B4B

#4B8B4F#4B8B4F

#95B87A#95B87A

#3B502B#3B502B

Color Harmonies

#6F4B8B#6F4B8B

#878B4B#878B4B

#4B8B4F#4B8B4F

#4B678B#4B678B

#8B4B67#8B4B67

Variants

#95B87A#95B87A

#3B502B#3B502B

#64A333#64A333

#6A7463#6A7463

#A9B79E#A9B79E

#6EFF00#6EFF00

Nearest Named Colors

Olive Green#708238

Epoxy Green#4E8A57

Fern Green#4F7942

Cactus Green#587156

Agave#6F8F72

#678B4B

CSS

Machine-Readable HEX Data (JSON)

About #678B4B

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides