HEX atlas value

#E3B11C

#E3B11C is a warm yellow HEX color close to Goldenrod. According to Colors Encyclopedia, it converts to RGB 227, 177, 28, HSL 45, 78%, 50%, has luminance 0.4786, and belongs to the vibrant group.

#E3B11C Sample readable text
HEX #E3B11C
RGB rgb(227, 177, 28)
HSL hsl(45 78% 50%)
CMYK cmyk(0, 22, 88, 11)
Luminance 0.4786
Contrast Black 10.57:1White 1.99:1

CSS

--color-e3b11c: #E3B11C;
.background-e3b11c { background-color: #E3B11C; }
.text-e3b11c { color: #E3B11C; }

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
Luminance0.4786
Black text10.57:1AA Pass
White text1.99:1AA 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":"#E3B11C","rgb":[227,177,28],"hsl":[45,78,50],"cmyk":[0,22,88,11],"luminance":0.4786,"contrast":{"black":10.57,"white":1.99}}
WCAG
{"AA":["#000000","#1A1A1A","#36454F"],"AAA":["#000000","#1A1A1A"]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":10.57,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":1.99,"wcagAA":false,"wcagAAA":false}]
Accessible alternatives
[{"name":"#B1E31C","hex":"#B1E31C","family":"green","bestTextColor":"#000000","contrastBlack":13.87,"contrastWhite":1.51,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#EDCD6E","hex":"#EDCD6E","family":"yellow","bestTextColor":"#000000","contrastBlack":13.56,"contrastWhite":1.55,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"Sunflower","hex":"#FFC512","family":"yellow","bestTextColor":"#000000","contrastBlack":13.25,"contrastWhite":1.59,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"Saffron","hex":"#F4C430","family":"yellow","bestTextColor":"#000000","contrastBlack":12.79,"contrastWhite":1.64,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"Fluorescent Orange","hex":"#FFBF00","family":"yellow","bestTextColor":"#000000","contrastBlack":12.7,"contrastWhite":1.65,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]}]
AI context
{"semanticGroups":["warm yellow","vibrant","vibrant yellow","Goldenrod adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","high-energy accents","highlight and warning systems"],"contrastSafeWith":["#000000","#1A1A1A","#36454F"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/e3b11c.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/goldenrod.json","https://www.colorsencyclopedia.com/api/colors/marigold.json","https://www.colorsencyclopedia.com/api/colors/mustard-yellow.json"]}
Harmonies
{"complementary":"#1C4EE3","analogous":["#E34E1C","#B1E31C"],"triadic":["#1CE3B1","#B11CE3"],"tetradic":["#1CE34E","#1C4EE3","#E31CB1"],"splitComplementary":["#1CB1E3","#4E1CE3"],"monochromatic":["#EDCD6E","#E3B11C","#917112"]}
Variants
{"light":"#EDCD6E","dark":"#917112","saturated":"#FFBF00","desaturated":"#C7A338","pastel":"#E7D397","neon":"#FFC929"}
Nearest named colors
[{"slug":"goldenrod","name":"Goldenrod","hex":"#DAA520","distance":15.524174696260024},{"slug":"marigold","name":"Marigold","hex":"#EAA221","distance":17.291616465790582},{"slug":"mustard-yellow","name":"Mustard Yellow","hex":"#E1AD01","distance":27.367864366808018},{"slug":"saffron","name":"Saffron","hex":"#F4C430","distance":32.4037034920393},{"slug":"sunflower","name":"Sunflower","hex":"#FFC512","distance":35.832945734337834}]

HEX meaning and use

About #E3B11C

#E3B11C is classified as a warm yellow value with vibrant visual character. #E3B11C is visually closest to Goldenrod, a named orange color with HEX #DAA520.

The RGB channels are 227, 177, and 28, with red carrying the strongest channel weight. In HSL, the hue is 45deg with 78% saturation and 50% lightness, so this page treats it as a high-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 high-energy accents. Its luminance is 0.4786, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 15.52, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text10.57:1AA Pass
White text1.99:1AA Fail

AA text options: #000000, #1A1A1A, #36454F.

AAA text options: #000000, #1A1A1A.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #E3B11C needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#00000010.57:1 · AAA
White text#FFFFFF1.99:1 · Fail

Accessible Alternatives

#B1E31C#000000 text · best 13.87:1#B1E31C
#EDCD6E#000000 text · best 13.56:1#EDCD6E
Sunflower#000000 text · best 13.25:1#FFC512
Saffron#000000 text · best 12.79:1#F4C430
Fluorescent Orange#000000 text · best 12.7:1#FFBF00

Generated Palette

#E3B11C#E3B11C
#1C4EE3#1C4EE3
#E34E1C#E34E1C
#B1E31C#B1E31C
#EDCD6E#EDCD6E
#917112#917112

Color Harmonies

#1C4EE3#1C4EE3
#E34E1C#E34E1C
#B1E31C#B1E31C
#1CE3B1#1CE3B1
#B11CE3#B11CE3

Variants

#EDCD6E#EDCD6E
#917112#917112
Fluorescent Orange#FFBF00
#C7A338#C7A338
#E7D397#E7D397
#FFC929#FFC929

Nearest Named Colors