Colors Encyclopedia

HEX atlas value

#3B310C

#3B310C is a warm yellow HEX color close to Espresso. According to Colors Encyclopedia, it converts to RGB 59, 49, 12, HSL 47, 66%, 14%, has luminance 0.0315, and belongs to the dark group.

yellowwarmdark
#3B310C Sample readable text
HEX #3B310C
RGB rgb(59, 49, 12)
HSL hsl(47 66% 14%)
CMYK cmyk(0, 17, 80, 77)
Luminance 0.0315
Contrast Black 1.63:1White 12.88:1

CSS

--color-3b310c: #3B310C;
.background-3b310c { background-color: #3B310C; }
.text-3b310c { color: #3B310C; }

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
Luminance0.0315
Black text1.63:1AA Fail
White text12.88:1AA 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":"#3B310C","rgb":[59,49,12],"hsl":[47,66,14],"cmyk":[0,17,80,77],"luminance":0.0315,"contrast":{"black":1.63,"white":12.88}}
WCAG
{"AA":["#FFFFFF","#F5F5F5"],"AAA":["#FFFFFF","#F5F5F5"]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":1.63,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":12.88,"wcagAA":true,"wcagAAA":true}]
Accessible alternatives
[{"name":"Black","hex":"#000000","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":1,"contrastWhite":21,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#0C163B","hex":"#0C163B","family":"blue","bestTextColor":"#FFFFFF","contrastBlack":1.19,"contrastWhite":17.59,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#3B190C","hex":"#3B190C","family":"orange","bestTextColor":"#FFFFFF","contrastBlack":1.33,"contrastWhite":15.79,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Rubber","hex":"#2A2725","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":1.42,"contrastWhite":14.83,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Asphalt","hex":"#2B2B2B","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":1.48,"contrastWhite":14.15,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]}]
AI context
{"semanticGroups":["warm yellow","dark","dark yellow","Espresso adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","dark theme accents","highlight and warning systems"],"contrastSafeWith":["#FFFFFF","#F5F5F5"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/3b310c.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/espresso.json","https://www.colorsencyclopedia.com/api/colors/rubber.json","https://www.colorsencyclopedia.com/api/colors/pine-bark.json"]}
Harmonies
{"complementary":"#0C163B","analogous":["#3B190C","#2E3B0C"],"triadic":["#0C3B31","#310C3B"],"tetradic":["#0C3B19","#0C163B","#3B0C2E"],"splitComplementary":["#0C2E3B","#190C3B"],"monochromatic":["#87701C","#3B310C","#000000"]}
Variants
{"light":"#87701C","dark":"#000000","saturated":"#433604","desaturated":"#332D14","pastel":"#968031","neon":"#705800"}
Nearest named colors
[{"slug":"espresso","name":"Espresso","hex":"#4B3621","distance":26.870057685088806},{"slug":"rubber","name":"Rubber","hex":"#2A2725","distance":31.843366656181317},{"slug":"pine-bark","name":"Pine Bark","hex":"#4A3728","distance":32.32645975048923},{"slug":"peat","name":"Peat","hex":"#3B2F2F","distance":35.05709628591621},{"slug":"asphalt","name":"Asphalt","hex":"#2B2B2B","distance":35.397740040855716}]
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

HEX meaning and use

About #3B310C

#3B310C is classified as a warm yellow value with dark visual character. #3B310C is visually closest to Espresso, a named orange color with HEX #4B3621.

The RGB channels are 59, 49, and 12, with red carrying the strongest channel weight. In HSL, the hue is 47deg with 66% saturation and 14% 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 dark theme accents. Its luminance is 0.0315, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 26.87, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text1.63:1AA Fail
White text12.88:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: #FFFFFF, #F5F5F5.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #3B310C needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000001.63:1 · Fail
White text#FFFFFF12.88:1 · AAA

Accessible Alternatives

Black#FFFFFF text · best 21:1#000000
#0C163B#FFFFFF text · best 17.59:1#0C163B
#3B190C#FFFFFF text · best 15.79:1#3B190C
Rubber#FFFFFF text · best 14.83:1#2A2725
Asphalt#FFFFFF text · best 14.15:1#2B2B2B

Generated Palette

#3B310C#3B310C
#0C163B#0C163B
#3B190C#3B190C
#2E3B0C#2E3B0C
#87701C#87701C
Black#000000

Color Harmonies

#0C163B#0C163B
#3B190C#3B190C
#2E3B0C#2E3B0C
#0C3B31#0C3B31
#310C3B#310C3B

Variants

#87701C#87701C
Black#000000
#433604#433604
#332D14#332D14
#968031#968031
#705800#705800

Nearest Named Colors

Espresso#4B3621
Rubber#2A2725
Pine Bark#4A3728
Peat#3B2F2F
Asphalt#2B2B2B

Related HEX Guides

Espresso colorOpen the nearest named color reference for #4B3621.Rubber colorOpen the nearest named color reference for #2A2725.Pine Bark colorOpen the nearest named color reference for #4A3728.Yellow color familyBrowse named yellow colors related to this HEX value.Warm colorsExplore colors with similar temperature behavior.Dark colorsFind colors in the dark 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.#3B310C APIOpen the machine-readable JSON record for this HEX value.