HEX atlas value

#F45734

#F45734 is a warm red HEX color close to Cinnabar. According to Colors Encyclopedia, it converts to RGB 244, 87, 52, HSL 11, 90%, 58%, has luminance 0.263, and belongs to the vibrant group.

red warm vibrant

#F45734 Sample readable text

HEX #F45734

RGB rgb(244, 87, 52)

HSL hsl(11 90% 58%)

CMYK cmyk(0, 64, 79, 4)

Luminance 0.263

Contrast Black 6.26:1White 3.35:1

CSS

--color-f45734: #F45734;
.background-f45734 { background-color: #F45734; }
.text-f45734 { color: #F45734; }

Luminance0.263

Black text6.26:1AA Pass

White text3.35:1AA 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":"#F45734","rgb":[244,87,52],"hsl":[11,90,58],"cmyk":[0,64,79,4],"luminance":0.263,"contrast":{"black":6.26,"white":3.35}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":6.26,"wcagAA":true,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":3.35,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"#F4B734","hex":"#F4B734","family":"orange","bestTextColor":"#000000","contrastBlack":11.67,"contrastWhite":1.8,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#34D1F4","hex":"#34D1F4","family":"cyan","bestTextColor":"#000000","contrastBlack":11.57,"contrastWhite":1.81,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#F99F8B","hex":"#F99F8B","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":"Neon Orange","hex":"#FF5F1F","family":"orange","bestTextColor":"#000000","contrastBlack":6.91,"contrastWhite":3.04,"wcagAA":["#000000","#1A1A1A"],"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/f45734.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/neon-orange.json"]}

Harmonies

{"complementary":"#34D1F4","analogous":["#F43471","#F4B734"],"triadic":["#34F457","#5734F4"],"tetradic":["#71F434","#34D1F4","#B734F4"],"splitComplementary":["#34F4B7","#3471F4"],"monochromatic":["#F99F8B","#F45734","#C22C0A"]}

Variants

{"light":"#F99F8B","dark":"#C22C0A","saturated":"#FF5029","desaturated":"#DD664B","pastel":"#F4BFB3","neon":"#FF7152"}

Nearest named colors

[{"slug":"cinnabar","name":"Cinnabar","hex":"#E44D2E","distance":19.79898987322333},{"slug":"fire-opal","name":"Fire Opal","hex":"#E95C20","distance":23.366642891095847},{"slug":"neon-orange","name":"Neon Orange","hex":"#FF5F1F","distance":25.019992006393608},{"slug":"tomato","name":"Tomato","hex":"#FF6347","distance":25.019992006393608},{"slug":"vermilion","name":"Vermilion","hex":"#E34234","distance":27.018512172212592}]

HEX meaning and use

About #F45734

#F45734 is classified as a warm red value with vibrant visual character. #F45734 is visually closest to Cinnabar, a named red color with HEX #E44D2E.

The RGB channels are 244, 87, and 52, with red carrying the strongest channel weight. In HSL, the hue is 11deg with 90% 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 0.263, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 19.80, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text6.26:1AA Pass

White text3.35:1AA Fail

AA text options: #000000, #1A1A1A.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #F45734 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000006.26:1 · AA

White text#FFFFFF3.35:1 · Fail

Accessible Alternatives

#F4B734#000000 text · best 11.67:1#F4B734

#34D1F4#000000 text · best 11.57:1#34D1F4

#F99F8B#000000 text · best 10.36:1#F99F8B

Tomato#000000 text · best 7.13:1#FF6347

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

Generated Palette

#F45734#F45734

#34D1F4#34D1F4

#F43471#F43471

#F4B734#F4B734

#F99F8B#F99F8B

#C22C0A#C22C0A

Color Harmonies

#34D1F4#34D1F4

#F43471#F43471

#F4B734#F4B734

#34F457#34F457

#5734F4#5734F4

Variants

#F99F8B#F99F8B

#C22C0A#C22C0A

#FF5029#FF5029

#DD664B#DD664B

#F4BFB3#F4BFB3

#FF7152#FF7152

Nearest Named Colors

Cinnabar#E44D2E

Fire Opal#E95C20

Neon Orange#FF5F1F

Tomato#FF6347

Vermilion#E34234

#F45734

CSS

Machine-Readable HEX Data (JSON)

About #F45734

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides