Colors Encyclopedia

HEX atlas value

#B57136

#B57136 is a warm orange HEX color close to Copper. According to Colors Encyclopedia, it converts to RGB 181, 113, 54, HSL 28, 54%, 46%, has luminance 0.219, and belongs to the earth tone group.

orangewarmearth-tone
#B57136 Sample readable text
HEX #B57136
RGB rgb(181, 113, 54)
HSL hsl(28 54% 46%)
CMYK cmyk(0, 38, 70, 29)
Luminance 0.219
Contrast Black 5.38:1White 3.9:1

CSS

--color-b57136: #B57136;
.background-b57136 { background-color: #B57136; }
.text-b57136 { color: #B57136; }

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
Luminance0.219
Black text5.38:1AA Pass
White text3.9:1AA Fail
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":"#B57136","rgb":[181,113,54],"hsl":[28,54,46],"cmyk":[0,38,70,29],"luminance":0.219,"contrast":{"black":5.38,"white":3.9}}
WCAG
{"AA":["#000000"],"AAA":[]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":5.38,"wcagAA":true,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":3.9,"wcagAA":false,"wcagAAA":false}]
Accessible alternatives
[{"name":"#B5B036","hex":"#B5B036","family":"yellow","bestTextColor":"#000000","contrastBlack":9.23,"contrastWhite":2.28,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#D5A072","hex":"#D5A072","family":"orange","bestTextColor":"#000000","contrastBlack":9.1,"contrastWhite":2.31,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#6E4521","hex":"#6E4521","family":"orange","bestTextColor":"#FFFFFF","contrastBlack":2.54,"contrastWhite":8.28,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#CE6F1C","hex":"#CE6F1C","family":"orange","bestTextColor":"#000000","contrastBlack":5.91,"contrastWhite":3.55,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":[]},{"name":"#B5363A","hex":"#B5363A","family":"red","bestTextColor":"#FFFFFF","contrastBlack":3.55,"contrastWhite":5.91,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":[]}]
AI context
{"semanticGroups":["warm orange","earth tone","earth tone orange","Copper adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","natural palettes"],"contrastSafeWith":["#000000"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/b57136.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/copper.json","https://www.colorsencyclopedia.com/api/colors/polished-copper.json","https://www.colorsencyclopedia.com/api/colors/adobe.json"]}
Harmonies
{"complementary":"#367AB5","analogous":["#B5363A","#B5B036"],"triadic":["#36B571","#7136B5"],"tetradic":["#3AB536","#367AB5","#B036B5"],"splitComplementary":["#36B5B0","#363AB5"],"monochromatic":["#D5A072","#B57136","#6E4521"]}
Variants
{"light":"#D5A072","dark":"#6E4521","saturated":"#CE6F1C","desaturated":"#9B7350","pastel":"#D2B398","neon":"#FF8214"}
Nearest named colors
[{"slug":"copper","name":"Copper","hex":"#B87333","distance":4.69041575982343},{"slug":"polished-copper","name":"Polished Copper","hex":"#B87333","distance":4.69041575982343},{"slug":"adobe","name":"Adobe","hex":"#BD6C48","distance":20.322401432901575},{"slug":"desert-clay","name":"Desert Clay","hex":"#B86D4B","distance":21.587033144922902},{"slug":"red-clay","name":"Red Clay","hex":"#B45A3C","distance":23.790754506740637}]
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

HEX meaning and use

About #B57136

#B57136 is classified as a warm orange value with earth tone visual character. #B57136 is visually closest to Copper, a named orange color with HEX #B87333.

The RGB channels are 181, 113, and 54, with red carrying the strongest channel weight. In HSL, the hue is 28deg with 54% saturation and 46% lightness, so this page treats it as a moderate-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 natural palettes. Its luminance is 0.219, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 4.69, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text5.38:1AA Pass
White text3.9:1AA Fail

AA text options: #000000.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #B57136 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000005.38:1 · AA
White text#FFFFFF3.9:1 · Fail

Accessible Alternatives

#B5B036#000000 text · best 9.23:1#B5B036
#D5A072#000000 text · best 9.1:1#D5A072
#6E4521#FFFFFF text · best 8.28:1#6E4521
#CE6F1C#000000 text · best 5.91:1#CE6F1C
#B5363A#FFFFFF text · best 5.91:1#B5363A

Generated Palette

#B57136#B57136
#367AB5#367AB5
#B5363A#B5363A
#B5B036#B5B036
#D5A072#D5A072
#6E4521#6E4521

Color Harmonies

#367AB5#367AB5
#B5363A#B5363A
#B5B036#B5B036
#36B571#36B571
#7136B5#7136B5

Variants

#D5A072#D5A072
#6E4521#6E4521
#CE6F1C#CE6F1C
#9B7350#9B7350
#D2B398#D2B398
#FF8214#FF8214

Nearest Named Colors

Copper#B87333
Polished Copper#B87333
Adobe#BD6C48
Desert Clay#B86D4B
Red Clay#B45A3C

Related HEX Guides

Copper colorOpen the nearest named color reference for #B87333.Polished Copper colorOpen the nearest named color reference for #B87333.Adobe colorOpen the nearest named color reference for #BD6C48.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.#B57136 APIOpen the machine-readable JSON record for this HEX value.