HEX atlas value

#556D5F

#556D5F is a cool green HEX color close to Cactus Green. According to Colors Encyclopedia, it converts to RGB 85, 109, 95, HSL 145, 12%, 38%, has luminance 0.1369, and belongs to the muted and earth tone groups.

green cool muted earth-tone

#556D5F Sample readable text

HEX #556D5F

RGB rgb(85, 109, 95)

HSL hsl(145 12% 38%)

CMYK cmyk(22, 0, 13, 57)

Luminance 0.1369

Contrast Black 3.74:1White 5.62:1

CSS

--color-556d5f: #556D5F;
.background-556d5f { background-color: #556D5F; }
.text-556d5f { color: #556D5F; }

Luminance0.1369

Black text3.74:1AA Fail

White text5.62:1AA 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":"#556D5F","rgb":[85,109,95],"hsl":[145,12,38],"cmyk":[22,0,13,57],"luminance":0.1369,"contrast":{"black":3.74,"white":5.62}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":3.74,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":5.62,"wcagAA":true,"wcagAAA":false}]

Accessible alternatives

[{"name":"#2D3932","hex":"#2D3932","family":"green","bestTextColor":"#FFFFFF","contrastBlack":1.74,"contrastWhite":12.06,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#819C8D","hex":"#819C8D","family":"green","bestTextColor":"#000000","contrastBlack":7.07,"contrastWhite":2.97,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000"]},{"name":"#6D5563","hex":"#6D5563","family":"pink","bestTextColor":"#FFFFFF","contrastBlack":3.13,"contrastWhite":6.71,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":[]},{"name":"#616161","hex":"#616161","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":3.39,"contrastWhite":6.19,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":[]},{"name":"Storm Blue","hex":"#4F666A","family":"cyan","bestTextColor":"#FFFFFF","contrastBlack":3.44,"contrastWhite":6.1,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":[]}]

AI context

{"semanticGroups":["cool green","muted","earth tone","muted green","earth tone green","Cactus Green adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","muted interface themes","natural palettes","botanical and wellness palettes"],"contrastSafeWith":["#FFFFFF","#F5F5F5"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/556d5f.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/cactus-green.json","https://www.colorsencyclopedia.com/api/colors/storm-blue.json","https://www.colorsencyclopedia.com/api/colors/shale.json"]}

Harmonies

{"complementary":"#6D5563","analogous":["#576D55","#556D6B"],"triadic":["#5F556D","#6D5F55"],"tetradic":["#55576D","#6D5563","#6D6B55"],"splitComplementary":["#6B556D","#6D5557"],"monochromatic":["#819C8D","#556D5F","#2D3932"]}

Variants

{"light":"#819C8D","dark":"#2D3932","saturated":"#40825B","desaturated":"#616161","pastel":"#A1A1A1","neon":"#00EB62"}

Nearest named colors

[{"slug":"cactus-green","name":"Cactus Green","hex":"#587156","distance":10.295630140987},{"slug":"storm-blue","name":"Storm Blue","hex":"#4F666A","distance":14.352700094407323},{"slug":"shale","name":"Shale","hex":"#59656F","distance":18.33030277982336},{"slug":"granite","name":"Granite","hex":"#676767","distance":20.591260281974},{"slug":"hookers-green","name":"Hookers Green","hex":"#49796B","distance":20.784609690826528}]

HEX meaning and use

About #556D5F

#556D5F is classified as a cool green value with muted and earth tone visual character. #556D5F is visually closest to Cactus Green, a named green color with HEX #587156.

The RGB channels are 85, 109, and 95, with green carrying the strongest channel weight. In HSL, the hue is 145deg with 12% saturation and 38% 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 muted interface themes. Its luminance is 0.1369, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 10.30, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text3.74:1AA Fail

White text5.62:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #556D5F needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000003.74:1 · Fail

White text#FFFFFF5.62:1 · AA

Accessible Alternatives

#2D3932#FFFFFF text · best 12.06:1#2D3932

#819C8D#000000 text · best 7.07:1#819C8D

#6D5563#FFFFFF text · best 6.71:1#6D5563

#616161#FFFFFF text · best 6.19:1#616161

Storm Blue#FFFFFF text · best 6.1:1#4F666A

Generated Palette

#556D5F#556D5F

#6D5563#6D5563

#576D55#576D55

#556D6B#556D6B

#819C8D#819C8D

#2D3932#2D3932

Color Harmonies

#6D5563#6D5563

#576D55#576D55

#556D6B#556D6B

#5F556D#5F556D

#6D5F55#6D5F55

Variants

#819C8D#819C8D

#2D3932#2D3932

#40825B#40825B

#616161#616161

#A1A1A1#A1A1A1

#00EB62#00EB62

Nearest Named Colors

Cactus Green#587156

Storm Blue#4F666A

Shale#59656F

Granite#676767

Hookers Green#49796B

#556D5F

CSS

Machine-Readable HEX Data (JSON)

About #556D5F

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides