HEX atlas value

#F34720

#F34720 is a warm red HEX color close to Cinnabar. According to Colors Encyclopedia, it converts to RGB 243, 71, 32, HSL 11, 90%, 54%, has luminance 0.2367, and belongs to the vibrant group.

red warm vibrant

#F34720 Sample readable text

HEX #F34720

RGB rgb(243, 71, 32)

HSL hsl(11 90% 54%)

CMYK cmyk(0, 71, 87, 5)

Luminance 0.2367

Contrast Black 5.73:1White 3.66:1

CSS

--color-f34720: #F34720;
.background-f34720 { background-color: #F34720; }
.text-f34720 { color: #F34720; }

Luminance0.2367

Black text5.73:1AA Pass

White text3.66:1AA 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":"#F34720","rgb":[243,71,32],"hsl":[11,90,54],"cmyk":[0,71,87,5],"luminance":0.2367,"contrast":{"black":5.73,"white":3.66}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":5.73,"wcagAA":true,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":3.66,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"#20CDF3","hex":"#20CDF3","family":"cyan","bestTextColor":"#000000","contrastBlack":11.09,"contrastWhite":1.89,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#F3B020","hex":"#F3B020","family":"orange","bestTextColor":"#000000","contrastBlack":11.04,"contrastWhite":1.9,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#F88F77","hex":"#F88F77","family":"red","bestTextColor":"#000000","contrastBlack":9.19,"contrastWhite":2.29,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"Neon Orange","hex":"#FF5F1F","family":"orange","bestTextColor":"#000000","contrastBlack":6.91,"contrastWhite":3.04,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":[]},{"name":"#AE2709","hex":"#AE2709","family":"red","bestTextColor":"#FFFFFF","contrastBlack":3.09,"contrastWhite":6.79,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":[]}]

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/f34720.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/cinnabar.json","https://www.colorsencyclopedia.com/api/colors/fire-opal.json","https://www.colorsencyclopedia.com/api/colors/vermilion.json"]}

Harmonies

{"complementary":"#20CDF3","analogous":["#F32063","#F3B020"],"triadic":["#20F347","#4720F3"],"tetradic":["#63F320","#20CDF3","#B020F3"],"splitComplementary":["#20F3B0","#2063F3"],"monochromatic":["#F88F77","#F34720","#AE2709"]}

Variants

{"light":"#F88F77","dark":"#AE2709","saturated":"#FF3F14","desaturated":"#D9573A","pastel":"#F2B0A1","neon":"#FF613D"}

Nearest named colors

[{"slug":"cinnabar","name":"Cinnabar","hex":"#E44D2E","distance":21.37755832643195},{"slug":"fire-opal","name":"Fire Opal","hex":"#E95C20","distance":23.259406699226016},{"slug":"vermilion","name":"Vermilion","hex":"#E34234","distance":26.095976701399778},{"slug":"neon-orange","name":"Neon Orange","hex":"#FF5F1F","distance":26.851443164195103},{"slug":"orange-red","name":"Orange Red","hex":"#FF4500","distance":34.23448553724738}]

HEX meaning and use

About #F34720

#F34720 is classified as a warm red value with vibrant visual character. #F34720 is visually closest to Cinnabar, a named red color with HEX #E44D2E.

The RGB channels are 243, 71, and 32, with red carrying the strongest channel weight. In HSL, the hue is 11deg with 90% 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 0.2367, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 21.38, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text5.73:1AA Pass

White text3.66:1AA Fail

AA text options: #000000, #1A1A1A.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #F34720 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000005.73:1 · AA

White text#FFFFFF3.66:1 · Fail

Accessible Alternatives

#20CDF3#000000 text · best 11.09:1#20CDF3

#F3B020#000000 text · best 11.04:1#F3B020

#F88F77#000000 text · best 9.19:1#F88F77

Neon Orange#000000 text · best 6.91:1#FF5F1F

#AE2709#FFFFFF text · best 6.79:1#AE2709

Generated Palette

#F34720#F34720

#20CDF3#20CDF3

#F32063#F32063

#F3B020#F3B020

#F88F77#F88F77

#AE2709#AE2709

Color Harmonies

#20CDF3#20CDF3

#F32063#F32063

#F3B020#F3B020

#20F347#20F347

#4720F3#4720F3

Variants

#F88F77#F88F77

#AE2709#AE2709

#FF3F14#FF3F14

#D9573A#D9573A

#F2B0A1#F2B0A1

#FF613D#FF613D

Nearest Named Colors

Cinnabar#E44D2E

Fire Opal#E95C20

Vermilion#E34234

Neon Orange#FF5F1F

Orange Red#FF4500

#F34720

CSS

Machine-Readable HEX Data (JSON)

About #F34720

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides