HEX atlas value

#556A1B

#556A1B is a cool green HEX color close to Fern Frond. According to Colors Encyclopedia, it converts to RGB 85, 106, 27, HSL 76, 59%, 26%, has luminance 0.1232, and belongs to the earth tone and jewel tone groups.

green cool earth-tone jewel-tone

#556A1B Sample readable text

HEX #556A1B

RGB rgb(85, 106, 27)

HSL hsl(76 59% 26%)

CMYK cmyk(20, 0, 75, 58)

Luminance 0.1232

Contrast Black 3.46:1White 6.06:1

CSS

--color-556a1b: #556A1B;
.background-556a1b { background-color: #556A1B; }
.text-556a1b { color: #556A1B; }

Luminance0.1232

Black text3.46:1AA Fail

White text6.06:1AA 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":"#556A1B","rgb":[85,106,27],"hsl":[76,59,26],"cmyk":[20,0,75,58],"luminance":0.1232,"contrast":{"black":3.46,"white":6.06}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":3.46,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":6.06,"wcagAA":true,"wcagAAA":false}]

Accessible alternatives

[{"name":"#1A2008","hex":"#1A2008","family":"green","bestTextColor":"#FFFFFF","contrastBlack":1.25,"contrastWhite":16.75,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#301B69","hex":"#301B69","family":"purple","bestTextColor":"#FFFFFF","contrastBlack":1.49,"contrastWhite":14.13,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#8FB22E","hex":"#8FB22E","family":"green","bestTextColor":"#000000","contrastBlack":8.58,"contrastWhite":2.45,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"Terre Verte","hex":"#385E0F","family":"green","bestTextColor":"#FFFFFF","contrastBlack":2.78,"contrastWhite":7.56,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF"]},{"name":"#4E5B2A","hex":"#4E5B2A","family":"green","bestTextColor":"#FFFFFF","contrastBlack":2.85,"contrastWhite":7.36,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF"]}]

AI context

{"semanticGroups":["cool green","earth tone","jewel tone","earth tone green","jewel tone green","Fern Frond adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","natural palettes","rich accent palettes","botanical and wellness palettes"],"contrastSafeWith":["#FFFFFF","#F5F5F5"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/556a1b.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/fern-frond.json","https://www.colorsencyclopedia.com/api/colors/moss-deep.json","https://www.colorsencyclopedia.com/api/colors/dark-olive-green.json"]}

Harmonies

{"complementary":"#301B69","analogous":["#69571B","#2D691B"],"triadic":["#1B5569","#691B55"],"tetradic":["#1B6957","#301B69","#691B2D"],"splitComplementary":["#1B2D69","#571B69"],"monochromatic":["#8FB22E","#556A1B","#1A2008"]}

Variants

{"light":"#8FB22E","dark":"#1A2008","saturated":"#5B780D","desaturated":"#4E5B2A","pastel":"#9CB94B","neon":"#7FAD00"}

Nearest named colors

[{"slug":"fern-frond","name":"Fern Frond","hex":"#657220","distance":18.57417562100671},{"slug":"moss-deep","name":"Moss Deep","hex":"#4A5D23","distance":18.81488772222678},{"slug":"dark-olive-green","name":"Dark Olive Green","hex":"#556B2F","distance":20.024984394500787},{"slug":"terre-verte","name":"Terre Verte","hex":"#385E0F","distance":33.60059523282288},{"slug":"avocado","name":"Avocado","hex":"#568203","distance":33.95585369269929}]

HEX meaning and use

About #556A1B

#556A1B is classified as a cool green value with earth tone and jewel tone visual character. #556A1B is visually closest to Fern Frond, a named green color with HEX #657220.

The RGB channels are 85, 106, and 27, with green carrying the strongest channel weight. In HSL, the hue is 76deg with 59% saturation and 26% lightness, so this page treats it as a moderate-saturation, dark 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 0.1232, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 18.57, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text3.46:1AA Fail

White text6.06:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #556A1B needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000003.46:1 · Fail

White text#FFFFFF6.06:1 · AA

Accessible Alternatives

#1A2008#FFFFFF text · best 16.75:1#1A2008

#301B69#FFFFFF text · best 14.13:1#301B69

#8FB22E#000000 text · best 8.58:1#8FB22E

Terre Verte#FFFFFF text · best 7.56:1#385E0F

#4E5B2A#FFFFFF text · best 7.36:1#4E5B2A

Generated Palette

#556A1B#556A1B

#301B69#301B69

#69571B#69571B

#2D691B#2D691B

#8FB22E#8FB22E

#1A2008#1A2008

Color Harmonies

#301B69#301B69

#69571B#69571B

#2D691B#2D691B

#1B5569#1B5569

#691B55#691B55

Variants

#8FB22E#8FB22E

#1A2008#1A2008

#5B780D#5B780D

#4E5B2A#4E5B2A

#9CB94B#9CB94B

#7FAD00#7FAD00

Nearest Named Colors

Fern Frond#657220

Moss Deep#4A5D23

Dark Olive Green#556B2F

Terre Verte#385E0F

Avocado#568203

#556A1B

CSS

Machine-Readable HEX Data (JSON)

About #556A1B

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides