HEX atlas value

#E77240

#E77240 is a warm orange HEX color close to Burnt Sienna. According to Colors Encyclopedia, it converts to RGB 231, 114, 64, HSL 18, 78%, 58%, has luminance 0.2939, and belongs to the vibrant group.

#E77240 Sample readable text
HEX #E77240
RGB rgb(231, 114, 64)
HSL hsl(18 78% 58%)
CMYK cmyk(0, 51, 72, 9)
Luminance 0.2939
Contrast Black 6.88:1White 3.05:1

CSS

--color-e77240: #E77240;
.background-e77240 { background-color: #E77240; }
.text-e77240 { color: #E77240; }

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
Luminance0.2939
Black text6.88:1AA Pass
White text3.05:1AA 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":"#E77240","rgb":[231,114,64],"hsl":[18,78,58],"cmyk":[0,51,72,9],"luminance":0.2939,"contrast":{"black":6.88,"white":3.05}}
WCAG
{"AA":["#000000","#1A1A1A"],"AAA":[]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":6.88,"wcagAA":true,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":3.05,"wcagAA":false,"wcagAAA":false}]
Accessible alternatives
[{"name":"#E7C640","hex":"#E7C640","family":"yellow","bestTextColor":"#000000","contrastBlack":12.55,"contrastWhite":1.67,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#F2AF92","hex":"#F2AF92","family":"orange","bestTextColor":"#000000","contrastBlack":11.32,"contrastWhite":1.85,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#40B5E7","hex":"#40B5E7","family":"blue","bestTextColor":"#000000","contrastBlack":8.98,"contrastWhite":2.34,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"Coral","hex":"#FF7F50","family":"orange","bestTextColor":"#000000","contrastBlack":8.4,"contrastWhite":2.5,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000"]},{"name":"Cadmium Orange","hex":"#ED872D","family":"orange","bestTextColor":"#000000","contrastBlack":8.1,"contrastWhite":2.59,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000"]}]
AI context
{"semanticGroups":["warm orange","vibrant","vibrant orange","Burnt Sienna adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","high-energy accents"],"contrastSafeWith":["#000000","#1A1A1A"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/e77240.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/burnt-sienna.json","https://www.colorsencyclopedia.com/api/colors/terracotta.json","https://www.colorsencyclopedia.com/api/colors/cadmium-orange.json"]}
Harmonies
{"complementary":"#40B5E7","analogous":["#E74062","#E7C640"],"triadic":["#40E772","#7240E7"],"tetradic":["#62E740","#40B5E7","#C640E7"],"splitComplementary":["#40E7C6","#4062E7"],"monochromatic":["#F2AF92","#E77240","#B64616"]}
Variants
{"light":"#F2AF92","dark":"#B64616","saturated":"#FF6929","desaturated":"#D07C58","pastel":"#EFC9B8","neon":"#FF8652"}
Nearest named colors
[{"slug":"burnt-sienna","name":"Burnt Sienna","hex":"#E97451","distance":17.233687939614086},{"slug":"terracotta","name":"Terracotta","hex":"#E2725B","distance":27.459060435491963},{"slug":"cadmium-orange","name":"Cadmium Orange","hex":"#ED872D","distance":28.948229652260256},{"slug":"tomato","name":"Tomato","hex":"#FF6347","distance":29.154759474226502},{"slug":"coral","name":"Coral","hex":"#FF7F50","distance":31.63858403911275}]

HEX meaning and use

About #E77240

#E77240 is classified as a warm orange value with vibrant visual character. #E77240 is visually closest to Burnt Sienna, a named red color with HEX #E97451.

The RGB channels are 231, 114, and 64, with red carrying the strongest channel weight. In HSL, the hue is 18deg 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 0.2939, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 17.23, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text6.88:1AA Pass
White text3.05:1AA Fail

AA text options: #000000, #1A1A1A.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #E77240 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000006.88:1 · AA
White text#FFFFFF3.05:1 · Fail

Accessible Alternatives

#E7C640#000000 text · best 12.55:1#E7C640
#F2AF92#000000 text · best 11.32:1#F2AF92
#40B5E7#000000 text · best 8.98:1#40B5E7
Coral#000000 text · best 8.4:1#FF7F50
Cadmium Orange#000000 text · best 8.1:1#ED872D

Generated Palette

#E77240#E77240
#40B5E7#40B5E7
#E74062#E74062
#E7C640#E7C640
#F2AF92#F2AF92
#B64616#B64616

Color Harmonies

#40B5E7#40B5E7
#E74062#E74062
#E7C640#E7C640
#40E772#40E772
#7240E7#7240E7

Variants

#F2AF92#F2AF92
#B64616#B64616
#FF6929#FF6929
#D07C58#D07C58
#EFC9B8#EFC9B8
#FF8652#FF8652

Nearest Named Colors