HEX atlas value

#EFE09F

#EFE09F is a warm yellow HEX color close to Vanilla. According to Colors Encyclopedia, it converts to RGB 239, 224, 159, HSL 49, 71%, 78%, has luminance 0.7417, and belongs to the pastel group.

#EFE09F Sample readable text
HEX #EFE09F
RGB rgb(239, 224, 159)
HSL hsl(49 71% 78%)
CMYK cmyk(0, 6, 33, 6)
Luminance 0.7417
Contrast Black 15.83:1White 1.33:1

CSS

--color-efe09f: #EFE09F;
.background-efe09f { background-color: #EFE09F; }
.text-efe09f { color: #EFE09F; }

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
Luminance0.7417
Black text15.83:1AA Pass
White text1.33:1AA 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":"#EFE09F","rgb":[239,224,159],"hsl":[49,71,78],"cmyk":[0,6,33,6],"luminance":0.7417,"contrast":{"black":15.83,"white":1.33}}
WCAG
{"AA":["#000000","#1A1A1A","#36454F"],"AAA":["#000000","#1A1A1A","#36454F"]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":15.83,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":1.33,"wcagAA":false,"wcagAAA":false}]
Accessible alternatives
[{"name":"#FCF9EE","hex":"#FCF9EE","family":"yellow","bestTextColor":"#000000","contrastBlack":19.92,"contrastWhite":1.05,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#FBE893","hex":"#FBE893","family":"yellow","bestTextColor":"#000000","contrastBlack":17.07,"contrastWhite":1.23,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"Pale Goldenrod","hex":"#EEE8AA","family":"yellow","bestTextColor":"#000000","contrastBlack":16.76,"contrastWhite":1.25,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#D6EF9F","hex":"#D6EF9F","family":"green","bestTextColor":"#000000","contrastBlack":16.71,"contrastWhite":1.26,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"Vanilla","hex":"#F3E5AB","family":"yellow","bestTextColor":"#000000","contrastBlack":16.61,"contrastWhite":1.26,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]}]
AI context
{"semanticGroups":["warm yellow","pastel","pastel yellow","Vanilla adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","soft UI backgrounds","highlight and warning systems"],"contrastSafeWith":["#000000","#1A1A1A","#36454F"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/efe09f.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/vanilla.json","https://www.colorsencyclopedia.com/api/colors/pale-goldenrod.json","https://www.colorsencyclopedia.com/api/colors/soft-peach.json"]}
Harmonies
{"complementary":"#9FAEEF","analogous":["#EFB89F","#D6EF9F"],"triadic":["#9FEFE0","#E09FEF"],"tetradic":["#9FEFB8","#9FAEEF","#EF9FD6"],"splitComplementary":["#9FD6EF","#B89FEF"],"monochromatic":["#FCF9EE","#EFE09F","#E1C751"]}
Variants
{"light":"#FCF9EE","dark":"#E1C751","saturated":"#FBE893","desaturated":"#E2D8AB","pastel":"#FFFFFF","neon":"#FFF2B8"}
Nearest named colors
[{"slug":"vanilla","name":"Vanilla","hex":"#F3E5AB","distance":13.601470508735444},{"slug":"pale-goldenrod","name":"Pale Goldenrod","hex":"#EEE8AA","distance":13.638181696985855},{"slug":"soft-peach","name":"Soft Peach","hex":"#FAD7A0","distance":14.247806848775006},{"slug":"khaki","name":"Khaki","hex":"#F0E68C","distance":19.949937343260004},{"slug":"wheat","name":"Wheat","hex":"#F5DEB3","distance":20.97617696340303}]

HEX meaning and use

About #EFE09F

#EFE09F is classified as a warm yellow value with pastel visual character. #EFE09F is visually closest to Vanilla, a named yellow color with HEX #F3E5AB.

The RGB channels are 239, 224, and 159, with red carrying the strongest channel weight. In HSL, the hue is 49deg with 71% saturation and 78% lightness, so this page treats it as a high-saturation, light 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 soft UI backgrounds. Its luminance is 0.7417, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 13.60, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text15.83:1AA Pass
White text1.33:1AA Fail

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

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

Accessibility-Safe Pairings and Alternatives

Use these pairings when #EFE09F needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#00000015.83:1 · AAA
White text#FFFFFF1.33:1 · Fail

Accessible Alternatives

#FCF9EE#000000 text · best 19.92:1#FCF9EE
#FBE893#000000 text · best 17.07:1#FBE893
Pale Goldenrod#000000 text · best 16.76:1#EEE8AA
#D6EF9F#000000 text · best 16.71:1#D6EF9F
Vanilla#000000 text · best 16.61:1#F3E5AB

Generated Palette

#EFE09F#EFE09F
#9FAEEF#9FAEEF
#EFB89F#EFB89F
#D6EF9F#D6EF9F
#FCF9EE#FCF9EE
#E1C751#E1C751

Color Harmonies

#9FAEEF#9FAEEF
#EFB89F#EFB89F
#D6EF9F#D6EF9F
#9FEFE0#9FEFE0
#E09FEF#E09FEF

Variants

#FCF9EE#FCF9EE
#E1C751#E1C751
#FBE893#FBE893
#E2D8AB#E2D8AB
White#FFFFFF
#FFF2B8#FFF2B8

Nearest Named Colors