Colors Encyclopedia

HEX atlas value

#66331E

#66331E is a warm orange HEX color close to Bark. According to Colors Encyclopedia, it converts to RGB 102, 51, 30, HSL 18, 55%, 26%, has luminance 0.0529, and belongs to the earth tone group.

orangewarmearth-tone
#66331E Sample readable text
HEX #66331E
RGB rgb(102, 51, 30)
HSL hsl(18 55% 26%)
CMYK cmyk(0, 50, 71, 60)
Luminance 0.0529
Contrast Black 2.06:1White 10.2:1

CSS

--color-66331e: #66331E;
.background-66331e { background-color: #66331E; }
.text-66331e { color: #66331E; }

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
Luminance0.0529
Black text2.06:1AA Fail
White text10.2:1AA 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":"#66331E","rgb":[102,51,30],"hsl":[18,55,26],"cmyk":[0,50,71,60],"luminance":0.0529,"contrast":{"black":2.06,"white":10.2}}
WCAG
{"AA":["#FFFFFF","#F5F5F5"],"AAA":["#FFFFFF","#F5F5F5"]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":2.06,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":10.2,"wcagAA":true,"wcagAAA":true}]
Accessible alternatives
[{"name":"#201009","hex":"#201009","family":"orange","bestTextColor":"#FFFFFF","contrastBlack":1.14,"contrastWhite":18.42,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#671E2C","hex":"#671E2C","family":"red","bestTextColor":"#FFFFFF","contrastBlack":1.8,"contrastWhite":11.68,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Garnet Red","hex":"#6E1F26","family":"red","bestTextColor":"#FFFFFF","contrastBlack":1.89,"contrastWhite":11.13,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#583A2C","hex":"#583A2C","family":"orange","bestTextColor":"#FFFFFF","contrastBlack":2.06,"contrastWhite":10.21,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Bark","hex":"#5B3A29","family":"orange","bestTextColor":"#FFFFFF","contrastBlack":2.08,"contrastWhite":10.09,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]}]
AI context
{"semanticGroups":["warm orange","earth tone","earth tone orange","Bark adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","natural palettes"],"contrastSafeWith":["#FFFFFF","#F5F5F5"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/66331e.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/bark.json","https://www.colorsencyclopedia.com/api/colors/sepia.json","https://www.colorsencyclopedia.com/api/colors/garnet-red.json"]}
Harmonies
{"complementary":"#1E5167","analogous":["#671E2C","#67581E"],"triadic":["#1E6734","#341E67"],"tetradic":["#2C671E","#1E5167","#581E67"],"splitComplementary":["#1E6758","#1E2C67"],"monochromatic":["#AE5832","#66331E","#201009"]}
Variants
{"light":"#AE5832","dark":"#201009","saturated":"#752E0F","desaturated":"#583A2C","pastel":"#B46E50","neon":"#AD3400"}
Nearest named colors
[{"slug":"bark","name":"Bark","hex":"#5B3A29","distance":17.05872210923198},{"slug":"sepia","name":"Sepia","hex":"#704214","distance":20.615528128088304},{"slug":"garnet-red","name":"Garnet Red","hex":"#6E1F26","distance":22.978250586152114},{"slug":"garnet","name":"Garnet","hex":"#733635","distance":26.589471600616662},{"slug":"walnut","name":"Walnut","hex":"#5C4033","distance":26.645825188948457}]
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

HEX meaning and use

About #66331E

#66331E is classified as a warm orange value with earth tone visual character. #66331E is visually closest to Bark, a named orange color with HEX #5B3A29.

The RGB channels are 102, 51, and 30, with red carrying the strongest channel weight. In HSL, the hue is 18deg with 55% 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 0.0529, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 17.06, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text2.06:1AA Fail
White text10.2:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: #FFFFFF, #F5F5F5.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #66331E needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000002.06:1 · Fail
White text#FFFFFF10.2:1 · AAA

Accessible Alternatives

#201009#FFFFFF text · best 18.42:1#201009
#671E2C#FFFFFF text · best 11.68:1#671E2C
Garnet Red#FFFFFF text · best 11.13:1#6E1F26
#583A2C#FFFFFF text · best 10.21:1#583A2C
Bark#FFFFFF text · best 10.09:1#5B3A29

Generated Palette

#66331E#66331E
#1E5167#1E5167
#671E2C#671E2C
#67581E#67581E
#AE5832#AE5832
#201009#201009

Color Harmonies

#1E5167#1E5167
#671E2C#671E2C
#67581E#67581E
#1E6734#1E6734
#341E67#341E67

Variants

#AE5832#AE5832
#201009#201009
#752E0F#752E0F
#583A2C#583A2C
#B46E50#B46E50
#AD3400#AD3400

Nearest Named Colors

Bark#5B3A29
Sepia#704214
Garnet Red#6E1F26
Garnet#733635
Walnut#5C4033

Related HEX Guides

Bark colorOpen the nearest named color reference for #5B3A29.Sepia colorOpen the nearest named color reference for #704214.Garnet Red colorOpen the nearest named color reference for #6E1F26.Orange color familyBrowse named orange colors related to this HEX value.Warm colorsExplore colors with similar temperature behavior.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.#66331E APIOpen the machine-readable JSON record for this HEX value.