HEX atlas value

#E75C40

#E75C40 is a warm red HEX color close to Cinnabar. According to Colors Encyclopedia, it converts to RGB 231, 92, 64, HSL 10, 78%, 58%, has luminance 0.2501, and belongs to the vibrant group.

red warm vibrant

#E75C40 Sample readable text

HEX #E75C40

RGB rgb(231, 92, 64)

HSL hsl(10 78% 58%)

CMYK cmyk(0, 60, 72, 9)

Luminance 0.2501

Contrast Black 6:1White 3.5:1

CSS

--color-e75c40: #E75C40;
.background-e75c40 { background-color: #E75C40; }
.text-e75c40 { color: #E75C40; }

Luminance0.2501

Black text6:1AA Pass

White text3.5:1AA 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":"#E75C40","rgb":[231,92,64],"hsl":[10,78,58],"cmyk":[0,60,72,9],"luminance":0.2501,"contrast":{"black":6,"white":3.5}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":6,"wcagAA":true,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":3.5,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"#40CCE7","hex":"#40CCE7","family":"cyan","bestTextColor":"#000000","contrastBlack":11.01,"contrastWhite":1.91,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#E7B040","hex":"#E7B040","family":"orange","bestTextColor":"#000000","contrastBlack":10.68,"contrastWhite":1.97,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#F2A292","hex":"#F2A292","family":"red","bestTextColor":"#000000","contrastBlack":10.36,"contrastWhite":2.03,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"Tomato","hex":"#FF6347","family":"red","bestTextColor":"#000000","contrastBlack":7.13,"contrastWhite":2.95,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000"]},{"name":"Burnt Sienna","hex":"#E97451","family":"red","bestTextColor":"#000000","contrastBlack":7.08,"contrastWhite":2.97,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000"]}]

AI context

{"semanticGroups":["warm red","vibrant","vibrant red","Cinnabar adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","high-energy accents","high-attention visual states"],"contrastSafeWith":["#000000","#1A1A1A"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/e75c40.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/cinnabar.json","https://www.colorsencyclopedia.com/api/colors/tomato.json","https://www.colorsencyclopedia.com/api/colors/vermilion.json"]}

Harmonies

{"complementary":"#40CCE7","analogous":["#E74078","#E7B040"],"triadic":["#40E75C","#5C40E7"],"tetradic":["#78E740","#40CCE7","#B040E7"],"splitComplementary":["#40E7B0","#4078E7"],"monochromatic":["#F2A292","#E75C40","#B63116"]}

Variants

{"light":"#F2A292","dark":"#B63116","saturated":"#FF4C29","desaturated":"#D06C58","pastel":"#EFC1B8","neon":"#FF6F52"}

Nearest named colors

[{"slug":"cinnabar","name":"Cinnabar","hex":"#E44D2E","distance":23.62202362203543},{"slug":"tomato","name":"Tomato","hex":"#FF6347","distance":25.96150997149434},{"slug":"vermilion","name":"Vermilion","hex":"#E34234","distance":28.91366458960192},{"slug":"burnt-sienna","name":"Burnt Sienna","hex":"#E97451","distance":29.478805945967352},{"slug":"tulip-red","name":"Tulip Red","hex":"#FF4D4D","distance":31.144823004794873}]

HEX meaning and use

About #E75C40

#E75C40 is classified as a warm red value with vibrant visual character. #E75C40 is visually closest to Cinnabar, a named red color with HEX #E44D2E.

The RGB channels are 231, 92, and 64, with red carrying the strongest channel weight. In HSL, the hue is 10deg 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 0.2501, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 23.62, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text6:1AA Pass

White text3.5:1AA Fail

AA text options: #000000, #1A1A1A.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #E75C40 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000006:1 · AA

White text#FFFFFF3.5:1 · Fail

Accessible Alternatives

#40CCE7#000000 text · best 11.01:1#40CCE7

#E7B040#000000 text · best 10.68:1#E7B040

#F2A292#000000 text · best 10.36:1#F2A292

Tomato#000000 text · best 7.13:1#FF6347

Burnt Sienna#000000 text · best 7.08:1#E97451

Generated Palette

#E75C40#E75C40

#40CCE7#40CCE7

#E74078#E74078

#E7B040#E7B040

#F2A292#F2A292

#B63116#B63116

Color Harmonies

#40CCE7#40CCE7

#E74078#E74078

#E7B040#E7B040

#40E75C#40E75C

#5C40E7#5C40E7

Variants

#F2A292#F2A292

#B63116#B63116

#FF4C29#FF4C29

#D06C58#D06C58

#EFC1B8#EFC1B8

#FF6F52#FF6F52

Nearest Named Colors

Cinnabar#E44D2E

Tomato#FF6347

Vermilion#E34234

Burnt Sienna#E97451

Tulip Red#FF4D4D

#E75C40

CSS

Machine-Readable HEX Data (JSON)

About #E75C40

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides