HEX atlas value

#E3C21C

#E3C21C is a warm yellow HEX color close to Citrine. According to Colors Encyclopedia, it converts to RGB 227, 194, 28, HSL 50, 78%, 50%, has luminance 0.55, and belongs to the vibrant group.

#E3C21C Sample readable text
HEX #E3C21C
RGB rgb(227, 194, 28)
HSL hsl(50 78% 50%)
CMYK cmyk(0, 15, 88, 11)
Luminance 0.55
Contrast Black 12:1White 1.75:1

CSS

--color-e3c21c: #E3C21C;
.background-e3c21c { background-color: #E3C21C; }
.text-e3c21c { color: #E3C21C; }

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
Luminance0.55
Black text12:1AA Pass
White text1.75:1AA 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":"#E3C21C","rgb":[227,194,28],"hsl":[50,78,50],"cmyk":[0,15,88,11],"luminance":0.55,"contrast":{"black":12,"white":1.75}}
WCAG
{"AA":["#000000","#1A1A1A","#36454F"],"AAA":["#000000","#1A1A1A"]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":12,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":1.75,"wcagAA":false,"wcagAAA":false}]
Accessible alternatives
[{"name":"#FFD500","hex":"#FFD500","family":"yellow","bestTextColor":"#000000","contrastBlack":14.77,"contrastWhite":1.42,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#EDD86E","hex":"#EDD86E","family":"yellow","bestTextColor":"#000000","contrastBlack":14.65,"contrastWhite":1.43,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#A1E31C","hex":"#A1E31C","family":"green","bestTextColor":"#000000","contrastBlack":13.52,"contrastWhite":1.55,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"Citrine","hex":"#E4D00A","family":"yellow","bestTextColor":"#000000","contrastBlack":13.33,"contrastWhite":1.58,"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"]}]
AI context
{"semanticGroups":["warm yellow","vibrant","vibrant yellow","Citrine 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/e3c21c.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/citrine.json","https://www.colorsencyclopedia.com/api/colors/saffron.json","https://www.colorsencyclopedia.com/api/colors/sunflower.json"]}
Harmonies
{"complementary":"#1C3DE3","analogous":["#E35E1C","#A1E31C"],"triadic":["#1CE3C2","#C21CE3"],"tetradic":["#1CE35E","#1C3DE3","#E31CA1"],"splitComplementary":["#1CA1E3","#5E1CE3"],"monochromatic":["#EDD86E","#E3C21C","#917C12"]}
Variants
{"light":"#EDD86E","dark":"#917C12","saturated":"#FFD500","desaturated":"#C7AF38","pastel":"#E7DA97","neon":"#FFDB29"}
Nearest named colors
[{"slug":"citrine","name":"Citrine","hex":"#E4D00A","distance":22.825424421026653},{"slug":"saffron","name":"Saffron","hex":"#F4C430","distance":26.324893162176366},{"slug":"sunflower","name":"Sunflower","hex":"#FFC512","distance":29.88310559496787},{"slug":"goldenrod","name":"Goldenrod","hex":"#DAA520","distance":30.62678566222711},{"slug":"industrial-yellow","name":"Industrial Yellow","hex":"#F3C300","distance":32.264531609803356}]

HEX meaning and use

About #E3C21C

#E3C21C is classified as a warm yellow value with vibrant visual character. #E3C21C is visually closest to Citrine, a named yellow color with HEX #E4D00A.

The RGB channels are 227, 194, and 28, with red carrying the strongest channel weight. In HSL, the hue is 50deg 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 0.55, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 22.83, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text12:1AA Pass
White text1.75:1AA Fail

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

AAA text options: #000000, #1A1A1A.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #E3C21C needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#00000012:1 · AAA
White text#FFFFFF1.75:1 · Fail

Accessible Alternatives

#FFD500#000000 text · best 14.77:1#FFD500
#EDD86E#000000 text · best 14.65:1#EDD86E
#A1E31C#000000 text · best 13.52:1#A1E31C
Citrine#000000 text · best 13.33:1#E4D00A
Sunflower#000000 text · best 13.25:1#FFC512

Generated Palette

#E3C21C#E3C21C
#1C3DE3#1C3DE3
#E35E1C#E35E1C
#A1E31C#A1E31C
#EDD86E#EDD86E
#917C12#917C12

Color Harmonies

#1C3DE3#1C3DE3
#E35E1C#E35E1C
#A1E31C#A1E31C
#1CE3C2#1CE3C2
#C21CE3#C21CE3

Variants

#EDD86E#EDD86E
#917C12#917C12
#FFD500#FFD500
#C7AF38#C7AF38
#E7DA97#E7DA97
#FFDB29#FFDB29

Nearest Named Colors