Colors Encyclopedia

HEX atlas value

#555A3F

#555A3F is a cool green HEX color close to Umber. According to Colors Encyclopedia, it converts to RGB 85, 90, 63, HSL 71, 18%, 30%, has luminance 0.096, and belongs to the muted and earth tone groups.

greencoolmutedearth-tone
#555A3F Sample readable text
HEX #555A3F
RGB rgb(85, 90, 63)
HSL hsl(71 18% 30%)
CMYK cmyk(6, 0, 30, 65)
Luminance 0.096
Contrast Black 2.92:1White 7.19:1

CSS

--color-555a3f: #555A3F;
.background-555a3f { background-color: #555A3F; }
.text-555a3f { color: #555A3F; }

Machine-readable data

Machine-Readable HEX Data (JSON)

Structured HEX color data for conversion, WCAG checks, CSS generation, automation, and AI ingestion.

AI-Ready Dataset v1.0.0
Luminance0.096
Black text2.92:1AA Fail
White text7.19:1AA 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
Download JSON Open API
Structured sections
Color systems
{"hex":"#555A3F","rgb":[85,90,63],"hsl":[71,18,30],"cmyk":[6,0,30,65],"luminance":0.096,"contrast":{"black":2.92,"white":7.19}}
WCAG
{"AA":["#FFFFFF","#F5F5F5"],"AAA":["#FFFFFF"]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":2.92,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":7.19,"wcagAA":true,"wcagAAA":true}]
Accessible alternatives
[{"name":"#222419","hex":"#222419","family":"green","bestTextColor":"#FFFFFF","contrastBlack":1.33,"contrastWhite":15.74,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#443F5A","hex":"#443F5A","family":"blue","bestTextColor":"#FFFFFF","contrastBlack":2.1,"contrastWhite":9.98,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Iron","hex":"#48494B","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":2.33,"contrastWhite":9.01,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Asphalt Gray","hex":"#4B4B4B","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":2.41,"contrastWhite":8.72,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Basalt","hex":"#4B4C4C","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":2.44,"contrastWhite":8.61,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]}]
AI context
{"semanticGroups":["cool green","muted","earth tone","muted green","earth tone green","Umber 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/555a3f.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/umber.json","https://www.colorsencyclopedia.com/api/colors/basalt.json","https://www.colorsencyclopedia.com/api/colors/asphalt-gray.json"]}
Harmonies
{"complementary":"#443F5A","analogous":["#5A523F","#475A3F"],"triadic":["#3F555A","#5A3F55"],"tetradic":["#3F5A52","#443F5A","#5A3F47"],"splitComplementary":["#3F475A","#523F5A"],"monochromatic":["#889064","#555A3F","#222419"]}
Variants
{"light":"#889064","dark":"#222419","saturated":"#606B2E","desaturated":"#4D4D4D","pastel":"#8E9089","neon":"#9EC200"}
Nearest named colors
[{"slug":"umber","name":"Umber","hex":"#635147","distance":18.466185312619388},{"slug":"basalt","name":"Basalt","hex":"#4B4C4C","distance":21.563858652847824},{"slug":"asphalt-gray","name":"Asphalt Gray","hex":"#4B4B4B","distance":21.656407827707714},{"slug":"dark-olive-green","name":"Dark Olive Green","hex":"#556B2F","distance":23.345235059857504},{"slug":"iron","name":"Iron","hex":"#48494B","distance":24.535688292770594}]
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

HEX meaning and use

About #555A3F

#555A3F is classified as a cool green value with muted and earth tone visual character. #555A3F is visually closest to Umber, a named orange color with HEX #635147.

The RGB channels are 85, 90, and 63, with green carrying the strongest channel weight. In HSL, the hue is 71deg with 18% saturation and 30% lightness, so this page treats it as a low-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 muted interface themes. Its luminance is 0.096, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 18.47, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text2.92:1AA Fail
White text7.19:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: #FFFFFF.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #555A3F needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000002.92:1 · Fail
White text#FFFFFF7.19:1 · AAA

Accessible Alternatives

#222419#FFFFFF text · best 15.74:1#222419
#443F5A#FFFFFF text · best 9.98:1#443F5A
Iron#FFFFFF text · best 9.01:1#48494B
Asphalt Gray#FFFFFF text · best 8.72:1#4B4B4B
Basalt#FFFFFF text · best 8.61:1#4B4C4C

Generated Palette

#555A3F#555A3F
#443F5A#443F5A
#5A523F#5A523F
#475A3F#475A3F
#889064#889064
#222419#222419

Color Harmonies

#443F5A#443F5A
#5A523F#5A523F
#475A3F#475A3F
#3F555A#3F555A
#5A3F55#5A3F55

Variants

#889064#889064
#222419#222419
#606B2E#606B2E
#4D4D4D#4D4D4D
#8E9089#8E9089
#9EC200#9EC200

Nearest Named Colors

Umber#635147
Basalt#4B4C4C
Asphalt Gray#4B4B4B
Dark Olive Green#556B2F
Iron#48494B

Related HEX Guides

Umber colorOpen the nearest named color reference for #635147.Basalt colorOpen the nearest named color reference for #4B4C4C.Asphalt Gray colorOpen the nearest named color reference for #4B4B4B.Green color familyBrowse named green colors related to this HEX value.Cool colorsExplore colors with similar temperature behavior.Muted colorsFind colors in the muted group.Earth Tone colorsFind colors in the earth tone group.Color palettesBrowse palette systems related to generated color combinations.Compare colorsCompare named colors near this HEX value.Accessible colorsBrowse WCAG-friendly named colors and safe text options.#555A3F APIOpen the machine-readable JSON record for this HEX value.