HEX atlas value

#E7C340

#E7C340 is a warm yellow HEX color close to Buttercup. According to Colors Encyclopedia, it converts to RGB 231, 195, 64, HSL 47, 78%, 58%, has luminance 0.5639, and belongs to the vibrant group.

#E7C340 Sample readable text
HEX #E7C340
RGB rgb(231, 195, 64)
HSL hsl(47 78% 58%)
CMYK cmyk(0, 16, 72, 9)
Luminance 0.5639
Contrast Black 12.28:1White 1.71:1

CSS

--color-e7c340: #E7C340;
.background-e7c340 { background-color: #E7C340; }
.text-e7c340 { color: #E7C340; }

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
Luminance0.5639
Black text12.28:1AA Pass
White text1.71:1AA 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":"#E7C340","rgb":[231,195,64],"hsl":[47,78,58],"cmyk":[0,16,72,9],"luminance":0.5639,"contrast":{"black":12.28,"white":1.71}}
WCAG
{"AA":["#000000","#1A1A1A","#36454F"],"AAA":["#000000","#1A1A1A"]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":12.28,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":1.71,"wcagAA":false,"wcagAAA":false}]
Accessible alternatives
[{"name":"#F2DD92","hex":"#F2DD92","family":"yellow","bestTextColor":"#000000","contrastBlack":15.53,"contrastWhite":1.35,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"Dandelion","hex":"#F0E130","family":"yellow","bestTextColor":"#000000","contrastBlack":15.52,"contrastWhite":1.35,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"Pear","hex":"#D1E231","family":"yellow","bestTextColor":"#000000","contrastBlack":14.63,"contrastWhite":1.44,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#B8E740","hex":"#B8E740","family":"green","bestTextColor":"#000000","contrastBlack":14.54,"contrastWhite":1.44,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#FFD129","hex":"#FFD129","family":"yellow","bestTextColor":"#000000","contrastBlack":14.4,"contrastWhite":1.46,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]}]
AI context
{"semanticGroups":["warm yellow","vibrant","vibrant yellow","Buttercup 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/e7c340.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/buttercup.json","https://www.colorsencyclopedia.com/api/colors/saffron.json","https://www.colorsencyclopedia.com/api/colors/old-gold.json"]}
Harmonies
{"complementary":"#4065E7","analogous":["#E77040","#B8E740"],"triadic":["#40E7C3","#C340E7"],"tetradic":["#40E770","#4065E7","#E740B8"],"splitComplementary":["#40B8E7","#7040E7"],"monochromatic":["#F2DD92","#E7C340","#B69316"]}
Variants
{"light":"#F2DD92","dark":"#B69316","saturated":"#FFD129","desaturated":"#D0B658","pastel":"#EFE3B8","neon":"#FFD952"}
Nearest named colors
[{"slug":"buttercup","name":"Buttercup","hex":"#F3C13A","distance":13.564659966250536},{"slug":"saffron","name":"Saffron","hex":"#F4C430","distance":20.639767440550294},{"slug":"old-gold","name":"Old Gold","hex":"#CFB53B","distance":28.231188426986208},{"slug":"dandelion","name":"Dandelion","hex":"#F0E130","distance":35.17101079013795},{"slug":"pear","name":"Pear","hex":"#D1E231","distance":40.8656334834051}]

HEX meaning and use

About #E7C340

#E7C340 is classified as a warm yellow value with vibrant visual character. #E7C340 is visually closest to Buttercup, a named orange color with HEX #F3C13A.

The RGB channels are 231, 195, and 64, with red carrying the strongest channel weight. In HSL, the hue is 47deg with 78% saturation and 58% 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 0.5639, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 13.56, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text12.28:1AA Pass
White text1.71:1AA Fail

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

AAA text options: #000000, #1A1A1A.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #E7C340 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#00000012.28:1 · AAA
White text#FFFFFF1.71:1 · Fail

Accessible Alternatives

#F2DD92#000000 text · best 15.53:1#F2DD92
Dandelion#000000 text · best 15.52:1#F0E130
Pear#000000 text · best 14.63:1#D1E231
#B8E740#000000 text · best 14.54:1#B8E740
#FFD129#000000 text · best 14.4:1#FFD129

Generated Palette

#E7C340#E7C340
#4065E7#4065E7
#E77040#E77040
#B8E740#B8E740
#F2DD92#F2DD92
#B69316#B69316

Color Harmonies

#4065E7#4065E7
#E77040#E77040
#B8E740#B8E740
#40E7C3#40E7C3
#C340E7#C340E7

Variants

#F2DD92#F2DD92
#B69316#B69316
#FFD129#FFD129
#D0B658#D0B658
#EFE3B8#EFE3B8
#FFD952#FFD952

Nearest Named Colors