Colors Encyclopedia

HEX atlas value

#A16321

#A16321 is a warm orange HEX color close to Sienna. According to Colors Encyclopedia, it converts to RGB 161, 99, 33, HSL 31, 66%, 38%, has luminance 0.1661, and belongs to the balanced group.

orangewarmbalanced
#A16321 Sample readable text
HEX #A16321
RGB rgb(161, 99, 33)
HSL hsl(31 66% 38%)
CMYK cmyk(0, 39, 80, 37)
Luminance 0.1661
Contrast Black 4.32:1White 4.86:1

CSS

--color-a16321: #A16321;
.background-a16321 { background-color: #A16321; }
.text-a16321 { color: #A16321; }

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
Luminance0.1661
Black text4.32:1AA Fail
White text4.86:1AA 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":"#A16321","rgb":[161,99,33],"hsl":[31,66,38],"cmyk":[0,39,80,37],"luminance":0.1661,"contrast":{"black":4.32,"white":4.86}}
WCAG
{"AA":["#FFFFFF"],"AAA":[]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":4.32,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":4.86,"wcagAA":true,"wcagAAA":false}]
Accessible alternatives
[{"name":"#553411","hex":"#553411","family":"orange","bestTextColor":"#FFFFFF","contrastBlack":1.89,"contrastWhite":11.13,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#D99145","hex":"#D99145","family":"orange","bestTextColor":"#000000","contrastBlack":8.09,"contrastWhite":2.6,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000"]},{"name":"#9FA121","hex":"#9FA121","family":"yellow","bestTextColor":"#000000","contrastBlack":7.59,"contrastWhite":2.77,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000"]},{"name":"#A12321","hex":"#A12321","family":"red","bestTextColor":"#FFFFFF","contrastBlack":2.78,"contrastWhite":7.56,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF"]},{"name":"#215FA1","hex":"#215FA1","family":"blue","bestTextColor":"#FFFFFF","contrastBlack":3.22,"contrastWhite":6.53,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":[]}]
AI context
{"semanticGroups":["warm orange","balanced","balanced orange","Sienna adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens"],"contrastSafeWith":["#FFFFFF"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/a16321.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/sienna.json","https://www.colorsencyclopedia.com/api/colors/cedar.json","https://www.colorsencyclopedia.com/api/colors/copper.json"]}
Harmonies
{"complementary":"#215FA1","analogous":["#A12321","#9FA121"],"triadic":["#21A163","#6321A1"],"tetradic":["#21A123","#215FA1","#A1219F"],"splitComplementary":["#219FA1","#2321A1"],"monochromatic":["#D99145","#A16321","#553411"]}
Variants
{"light":"#D99145","dark":"#553411","saturated":"#B6640C","desaturated":"#8C6236","pastel":"#D1A271","neon":"#EB7900"}
Nearest named colors
[{"slug":"sienna","name":"Sienna","hex":"#A0522D","distance":20.83266665599966},{"slug":"cedar","name":"Cedar","hex":"#8B5A2B","distance":25.787593916455254},{"slug":"copper","name":"Copper","hex":"#B87333","distance":33.301651610693426},{"slug":"polished-copper","name":"Polished Copper","hex":"#B87333","distance":33.301651610693426},{"slug":"red-clay","name":"Red Clay","hex":"#B45A3C","distance":34.219877264537345}]
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

HEX meaning and use

About #A16321

#A16321 is classified as a warm orange value with balanced visual character. #A16321 is visually closest to Sienna, a named orange color with HEX #A0522D.

The RGB channels are 161, 99, and 33, with red carrying the strongest channel weight. In HSL, the hue is 31deg with 66% saturation and 38% 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, and CSS color tokens. Its luminance is 0.1661, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 20.83, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text4.32:1AA Fail
White text4.86:1AA Pass

AA text options: #FFFFFF.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #A16321 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000004.32:1 · Fail
White text#FFFFFF4.86:1 · AA

Accessible Alternatives

#553411#FFFFFF text · best 11.13:1#553411
#D99145#000000 text · best 8.09:1#D99145
#9FA121#000000 text · best 7.59:1#9FA121
#A12321#FFFFFF text · best 7.56:1#A12321
#215FA1#FFFFFF text · best 6.53:1#215FA1

Generated Palette

#A16321#A16321
#215FA1#215FA1
#A12321#A12321
#9FA121#9FA121
#D99145#D99145
#553411#553411

Color Harmonies

#215FA1#215FA1
#A12321#A12321
#9FA121#9FA121
#21A163#21A163
#6321A1#6321A1

Variants

#D99145#D99145
#553411#553411
#B6640C#B6640C
#8C6236#8C6236
#D1A271#D1A271
#EB7900#EB7900

Nearest Named Colors

Sienna#A0522D
Cedar#8B5A2B
Copper#B87333
Polished Copper#B87333
Red Clay#B45A3C

Related HEX Guides

Sienna colorOpen the nearest named color reference for #A0522D.Cedar colorOpen the nearest named color reference for #8B5A2B.Copper colorOpen the nearest named color reference for #B87333.Orange color familyBrowse named orange colors related to this HEX value.Warm colorsExplore colors with similar temperature behavior.Balanced colorsFind colors in the balanced 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.#A16321 APIOpen the machine-readable JSON record for this HEX value.