HEX atlas value

#05571B

#05571B is a cool green HEX color close to Emerald Dark. According to Colors Encyclopedia, it converts to RGB 5, 87, 27, HSL 136, 89%, 18%, has luminance 0.0693, and belongs to the dark and jewel tone groups.

green cool dark jewel-tone

#05571B Sample readable text

HEX #05571B

RGB rgb(5, 87, 27)

HSL hsl(136 89% 18%)

CMYK cmyk(94, 0, 69, 66)

Luminance 0.0693

Contrast Black 2.39:1White 8.8:1

CSS

--color-05571b: #05571B;
.background-05571b { background-color: #05571B; }
.text-05571b { color: #05571B; }

Luminance0.0693

Black text2.39:1AA Fail

White text8.8:1AA 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":"#05571B","rgb":[5,87,27],"hsl":[136,89,18],"cmyk":[94,0,69,66],"luminance":0.0693,"contrast":{"black":2.39,"white":8.8}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":2.39,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":8.8,"wcagAA":true,"wcagAAA":true}]

Accessible alternatives

[{"name":"Black","hex":"#000000","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":1,"contrastWhite":21,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#570541","hex":"#570541","family":"pink","bestTextColor":"#FFFFFF","contrastBlack":1.5,"contrastWhite":13.96,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"British Racing Green","hex":"#004225","family":"green","bestTextColor":"#FFFFFF","contrastBlack":1.81,"contrastWhite":11.63,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#0F4D20","hex":"#0F4D20","family":"green","bestTextColor":"#FFFFFF","contrastBlack":2.1,"contrastWhite":9.99,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#185705","hex":"#185705","family":"green","bestTextColor":"#FFFFFF","contrastBlack":2.4,"contrastWhite":8.74,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]}]

AI context

{"semanticGroups":["cool green","dark","jewel tone","dark green","jewel tone green","Emerald Dark adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","rich accent palettes","dark theme accents","botanical and wellness palettes"],"contrastSafeWith":["#FFFFFF","#F5F5F5"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/05571b.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/emerald-dark.json","https://www.colorsencyclopedia.com/api/colors/british-racing-green.json","https://www.colorsencyclopedia.com/api/colors/dark-green.json"]}

Harmonies

{"complementary":"#570541","analogous":["#185705","#055744"],"triadic":["#1B0557","#571B05"],"tetradic":["#051857","#570541","#574405"],"splitComplementary":["#440557","#570518"],"monochromatic":["#0AAE36","#05571B","#000000"]}

Variants

{"light":"#0AAE36","dark":"#000000","saturated":"#005C18","desaturated":"#0F4D20","pastel":"#1DBF48","neon":"#008523"}

Nearest named colors

[{"slug":"emerald-dark","name":"Emerald Dark","hex":"#046307","distance":23.345235059857504},{"slug":"british-racing-green","name":"British Racing Green","hex":"#004225","distance":23.790754506740637},{"slug":"dark-green","name":"Dark Green","hex":"#006400","distance":30.380915061926625},{"slug":"green","name":"Green","hex":"#008000","distance":49.34571916590131},{"slug":"terre-verte","name":"Terre Verte","hex":"#385E0F","distance":52.85830114561004}]

HEX meaning and use

About #05571B

#05571B is classified as a cool green value with dark and jewel tone visual character. #05571B is visually closest to Emerald Dark, a named green color with HEX #046307.

The RGB channels are 5, 87, and 27, with green carrying the strongest channel weight. In HSL, the hue is 136deg with 89% saturation and 18% lightness, so this page treats it as a high-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 rich accent palettes. Its luminance is 0.0693, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 23.35, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text2.39:1AA Fail

White text8.8:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: #FFFFFF, #F5F5F5.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #05571B needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000002.39:1 · Fail

White text#FFFFFF8.8:1 · AAA

Accessible Alternatives

Black#FFFFFF text · best 21:1#000000

#570541#FFFFFF text · best 13.96:1#570541

British Racing Green#FFFFFF text · best 11.63:1#004225

#0F4D20#FFFFFF text · best 9.99:1#0F4D20

#185705#FFFFFF text · best 8.74:1#185705

Generated Palette

#05571B#05571B

#570541#570541

#185705#185705

#055744#055744

#0AAE36#0AAE36

Black#000000

Color Harmonies

#570541#570541

#185705#185705

#055744#055744

#1B0557#1B0557

#571B05#571B05

Variants

#0AAE36#0AAE36

Black#000000

#005C18#005C18

#0F4D20#0F4D20

#1DBF48#1DBF48

#008523#008523

Nearest Named Colors

Emerald Dark#046307

British Racing Green#004225

Dark Green#006400

Green#008000

Terre Verte#385E0F

#05571B

CSS

Machine-Readable HEX Data (JSON)

About #05571B

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides