HEX atlas value

#E37F1C

#E37F1C is a warm orange HEX color nearest Cadmium Orange. RGB 227, 127, 28, HSL 30° 78% 50%, luminance 0.3159; view contrast and conversions.

orange warm vibrant

#E37F1C Sample readable text

HEX #E37F1C

RGB rgb(227, 127, 28)

HSL hsl(30 78% 50%)

CMYK cmyk(0, 44, 88, 11)

Luminance 0.3159

Contrast Black 7.32:1White 2.87:1

CSS

--color-e37f1c: #E37F1C;
.background-e37f1c { background-color: #E37F1C; }
.text-e37f1c { color: #E37F1C; }

HEX meaning and use

About #E37F1C

#E37F1C is classified as a warm orange value with vibrant visual character. #E37F1C is visually closest to Cadmium Orange, a named orange color with HEX #ED872D.

The RGB channels are 227, 127, and 28, with red carrying the strongest channel weight. In HSL, the hue is 30deg with 78% saturation and 50% lightness, so this page treats it as a high-saturation, mid-lightness atlas color rather than a generic swatch.

Practical uses for this HEX value include color conversion, WCAG contrast checks, CSS color tokens, and high-energy accents. Its luminance is 0.3159, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 21.28, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text7.32:1AA Pass

White text2.87:1AA Fail

AA text options: #000000, #1A1A1A.

AAA text options: #000000.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #E37F1C needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000007.32:1 · AAA

White text#FFFFFF2.87:1 · Fail

Accessible Alternatives

#E3E31C#E3E31C · #000000 text · best 15.27:1 #EDAD6E#EDAD6E · #000000 text · best 10.8:1 #FF8000#FF8000 · #000000 text · best 8.34:1 Cadmium Orange#ED872D · #000000 text · best 8.1:1 Pumpkin#FF7518 · #000000 text · best 7.81:1

Generated Palette

#E37F1C#E37F1C

#1C7FE3#1C7FE3

#E31C1C#E31C1C

#E3E31C#E3E31C

#EDAD6E#EDAD6E

#915212#915212

Color Harmonies

#1C7FE3#1C7FE3

#E31C1C#E31C1C

#E3E31C#E3E31C

#1CE380#1CE380

#7F1CE3#7F1CE3

Variants

#EDAD6E#EDAD6E

#915212#915212

#FF8000#FF8000

#C78038#C78038

#E7BF97#E7BF97

#FF9429#FF9429

Nearest Named Colors

Cadmium Orange#ED872D

Ochre#CC7722

Chocolate#D2691E

Cinnamon#D2691E

Pumpkin#FF7518

Luminance0.3159

Black text7.32:1AA Pass

White text2.87:1AA 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

Structured sections

Color systems

{"hex":"#E37F1C","rgb":[227,127,28],"hsl":[30,78,50],"cmyk":[0,44,88,11],"luminance":0.3159,"contrast":{"black":7.32,"white":2.87}}

WCAG

{"AA":["#000000","#1A1A1A"],"AAA":["#000000"]}

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":7.32,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":2.87,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"#E3E31C","hex":"#E3E31C","family":"yellow","bestTextColor":"#000000","contrastBlack":15.27,"contrastWhite":1.38,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#EDAD6E","hex":"#EDAD6E","family":"orange","bestTextColor":"#000000","contrastBlack":10.8,"contrastWhite":1.94,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#FF8000","hex":"#FF8000","family":"orange","bestTextColor":"#000000","contrastBlack":8.34,"contrastWhite":2.52,"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"]},{"name":"Pumpkin","hex":"#FF7518","family":"orange","bestTextColor":"#000000","contrastBlack":7.81,"contrastWhite":2.69,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000"]}]

AI context

{"semanticGroups":["warm orange","vibrant","vibrant orange","Cadmium Orange adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","high-energy accents"],"contrastSafeWith":["#000000","#1A1A1A"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/e37f1c.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/cadmium-orange.json","https://www.colorsencyclopedia.com/api/colors/ochre.json","https://www.colorsencyclopedia.com/api/colors/chocolate.json"]}

Harmonies

{"complementary":"#1C7FE3","analogous":["#E31C1C","#E3E31C"],"triadic":["#1CE380","#7F1CE3"],"tetradic":["#1CE31C","#1C7FE3","#E31CE3"],"splitComplementary":["#1CE3E3","#1C1CE3"],"monochromatic":["#EDAD6E","#E37F1C","#915212"]}

Variants

{"light":"#EDAD6E","dark":"#915212","saturated":"#FF8000","desaturated":"#C78038","pastel":"#E7BF97","neon":"#FF9429"}

Nearest named colors

[{"slug":"cadmium-orange","name":"Cadmium Orange","hex":"#ED872D","distance":21.283796653792763},{"slug":"ochre","name":"Ochre","hex":"#CC7722","distance":25.079872407968907},{"slug":"chocolate","name":"Chocolate","hex":"#D2691E","distance":27.874719729532707},{"slug":"cinnamon","name":"Cinnamon","hex":"#D2691E","distance":27.874719729532707},{"slug":"pumpkin","name":"Pumpkin","hex":"#FF7518","distance":30}]

#E37F1C

CSS

About #E37F1C

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Machine-Readable HEX Data (JSON)

Related HEX Guides