HEX atlas value

#E55C2E

#E55C2E is a warm orange HEX color close to Fire Opal. According to Colors Encyclopedia, it converts to RGB 229, 92, 46, HSL 15, 78%, 54%, has luminance 0.2451, and belongs to the vibrant group.

orange warm vibrant

#E55C2E Sample readable text

HEX #E55C2E

RGB rgb(229, 92, 46)

HSL hsl(15 78% 54%)

CMYK cmyk(0, 60, 80, 10)

Luminance 0.2451

Contrast Black 5.9:1White 3.56:1

CSS

--color-e55c2e: #E55C2E;
.background-e55c2e { background-color: #E55C2E; }
.text-e55c2e { color: #E55C2E; }

Luminance0.2451

Black text5.9:1AA Pass

White text3.56:1AA 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":"#E55C2E","rgb":[229,92,46],"hsl":[15,78,54],"cmyk":[0,60,80,10],"luminance":0.2451,"contrast":{"black":5.9,"white":3.56}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":5.9,"wcagAA":true,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":3.56,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"#E5B72E","hex":"#E5B72E","family":"yellow","bestTextColor":"#000000","contrastBlack":11.14,"contrastWhite":1.88,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#EF9C80","hex":"#EF9C80","family":"orange","bestTextColor":"#000000","contrastBlack":9.74,"contrastWhite":2.16,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#2EB7E5","hex":"#2EB7E5","family":"blue","bestTextColor":"#000000","contrastBlack":9.02,"contrastWhite":2.33,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#A33814","hex":"#A33814","family":"orange","bestTextColor":"#FFFFFF","contrastBlack":3.13,"contrastWhite":6.7,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":[]},{"name":"#FF4F14","hex":"#FF4F14","family":"orange","bestTextColor":"#000000","contrastBlack":6.38,"contrastWhite":3.29,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":[]}]

AI context

{"semanticGroups":["warm orange","vibrant","vibrant orange","Fire Opal adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","high-energy accents"],"contrastSafeWith":["#000000","#1A1A1A"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/e55c2e.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/fire-opal.json","https://www.colorsencyclopedia.com/api/colors/cinnabar.json","https://www.colorsencyclopedia.com/api/colors/vermilion.json"]}

Harmonies

{"complementary":"#2EB7E5","analogous":["#E52E5C","#E5B72E"],"triadic":["#2EE55C","#5C2EE5"],"tetradic":["#5CE52E","#2EB7E5","#B72EE5"],"splitComplementary":["#2EE5B7","#2E5CE5"],"monochromatic":["#EF9C80","#E55C2E","#A33814"]}

Variants

{"light":"#EF9C80","dark":"#A33814","saturated":"#FF4F14","desaturated":"#CB6948","pastel":"#EBB9A8","neon":"#FF6E3D"}

Nearest named colors

[{"slug":"fire-opal","name":"Fire Opal","hex":"#E95C20","distance":14.560219778561036},{"slug":"cinnabar","name":"Cinnabar","hex":"#E44D2E","distance":15.033296378372908},{"slug":"vermilion","name":"Vermilion","hex":"#E34234","distance":26.758176320519304},{"slug":"chocolate","name":"Chocolate","hex":"#D2691E","distance":28.035691537752374},{"slug":"cinnamon","name":"Cinnamon","hex":"#D2691E","distance":28.035691537752374}]

HEX meaning and use

About #E55C2E

#E55C2E is classified as a warm orange value with vibrant visual character. #E55C2E is visually closest to Fire Opal, a named orange color with HEX #E95C20.

The RGB channels are 229, 92, and 46, with red carrying the strongest channel weight. In HSL, the hue is 15deg with 78% saturation and 54% 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 0.2451, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 14.56, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text5.9:1AA Pass

White text3.56:1AA Fail

AA text options: #000000, #1A1A1A.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #E55C2E needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000005.9:1 · AA

White text#FFFFFF3.56:1 · Fail

Accessible Alternatives

#E5B72E#000000 text · best 11.14:1#E5B72E

#EF9C80#000000 text · best 9.74:1#EF9C80

#2EB7E5#000000 text · best 9.02:1#2EB7E5

#A33814#FFFFFF text · best 6.7:1#A33814

#FF4F14#000000 text · best 6.38:1#FF4F14

Generated Palette

#E55C2E#E55C2E

#2EB7E5#2EB7E5

#E52E5C#E52E5C

#E5B72E#E5B72E

#EF9C80#EF9C80

#A33814#A33814

Color Harmonies

#2EB7E5#2EB7E5

#E52E5C#E52E5C

#E5B72E#E5B72E

#2EE55C#2EE55C

#5C2EE5#5C2EE5

Variants

#EF9C80#EF9C80

#A33814#A33814

#FF4F14#FF4F14

#CB6948#CB6948

#EBB9A8#EBB9A8

#FF6E3D#FF6E3D

Nearest Named Colors

Fire Opal#E95C20

Cinnabar#E44D2E

Vermilion#E34234

Chocolate#D2691E

Cinnamon#D2691E

#E55C2E

CSS

Machine-Readable HEX Data (JSON)

About #E55C2E

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides