HEX atlas value

#B57E36

#B57E36 is a warm orange HEX color close to Copper. According to Colors Encyclopedia, it converts to RGB 181, 126, 54, HSL 34, 54%, 46%, has luminance 0.2501, and belongs to the earth tone group.

#B57E36 Sample readable text
HEX #B57E36
RGB rgb(181, 126, 54)
HSL hsl(34 54% 46%)
CMYK cmyk(0, 30, 70, 29)
Luminance 0.2501
Contrast Black 6:1White 3.5:1

CSS

--color-b57e36: #B57E36;
.background-b57e36 { background-color: #B57E36; }
.text-b57e36 { color: #B57E36; }

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
Luminance0.2501
Black text6:1AA Pass
White text3.5:1AA 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":"#B57E36","rgb":[181,126,54],"hsl":[34,54,46],"cmyk":[0,30,70,29],"luminance":0.2501,"contrast":{"black":6,"white":3.5}}
WCAG
{"AA":["#000000","#1A1A1A"],"AAA":[]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":6,"wcagAA":true,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":3.5,"wcagAA":false,"wcagAAA":false}]
Accessible alternatives
[{"name":"#D5AA72","hex":"#D5AA72","family":"orange","bestTextColor":"#000000","contrastBlack":9.82,"contrastWhite":2.14,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#ACB536","hex":"#ACB536","family":"yellow","bestTextColor":"#000000","contrastBlack":9.42,"contrastWhite":2.23,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#6E4D21","hex":"#6E4D21","family":"orange","bestTextColor":"#FFFFFF","contrastBlack":2.75,"contrastWhite":7.65,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Peru","hex":"#CD853F","family":"orange","bestTextColor":"#000000","contrastBlack":7.02,"contrastWhite":2.99,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000"]},{"name":"#CE811C","hex":"#CE811C","family":"orange","bestTextColor":"#000000","contrastBlack":6.78,"contrastWhite":3.1,"wcagAA":["#000000","#1A1A1A"],"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","#1A1A1A"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/b57e36.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/bronze.json"]}
Harmonies
{"complementary":"#366DB5","analogous":["#B53E36","#ACB536"],"triadic":["#36B57E","#7E36B5"],"tetradic":["#36B53E","#366DB5","#B536AC"],"splitComplementary":["#36ACB5","#3E36B5"],"monochromatic":["#D5AA72","#B57E36","#6E4D21"]}
Variants
{"light":"#D5AA72","dark":"#6E4D21","saturated":"#CE811C","desaturated":"#9B7A50","pastel":"#D2B998","neon":"#FF9914"}
Nearest named colors
[{"slug":"copper","name":"Copper","hex":"#B87333","distance":11.789826122551595},{"slug":"polished-copper","name":"Polished Copper","hex":"#B87333","distance":11.789826122551595},{"slug":"bronze","name":"Bronze","hex":"#CD7F32","distance":24.351591323771842},{"slug":"peru","name":"Peru","hex":"#CD853F","distance":26.570660511172846},{"slug":"adobe","name":"Adobe","hex":"#BD6C48","distance":26.68332812825267}]

HEX meaning and use

About #B57E36

#B57E36 is classified as a warm orange value with earth tone visual character. #B57E36 is visually closest to Copper, a named orange color with HEX #B87333.

The RGB channels are 181, 126, and 54, with red carrying the strongest channel weight. In HSL, the hue is 34deg 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 0.2501, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 11.79, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text6:1AA Pass
White text3.5:1AA Fail

AA text options: #000000, #1A1A1A.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #B57E36 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000006:1 · AA
White text#FFFFFF3.5:1 · Fail

Accessible Alternatives

#D5AA72#000000 text · best 9.82:1#D5AA72
#ACB536#000000 text · best 9.42:1#ACB536
#6E4D21#FFFFFF text · best 7.65:1#6E4D21
Peru#000000 text · best 7.02:1#CD853F
#CE811C#000000 text · best 6.78:1#CE811C

Generated Palette

#B57E36#B57E36
#366DB5#366DB5
#B53E36#B53E36
#ACB536#ACB536
#D5AA72#D5AA72
#6E4D21#6E4D21

Color Harmonies

#366DB5#366DB5
#B53E36#B53E36
#ACB536#ACB536
#36B57E#36B57E
#7E36B5#7E36B5

Variants

#D5AA72#D5AA72
#6E4D21#6E4D21
#CE811C#CE811C
#9B7A50#9B7A50
#D2B998#D2B998
#FF9914#FF9914

Nearest Named Colors