HEX atlas value

#FF6347

#FF6347 is a warm red HEX color nearest Tomato. RGB 255, 99, 71, HSL 9° 100% 64%, luminance 0.3064; view contrast and conversions.

red warm vibrant

#FF6347 Sample readable text

HEX #FF6347

RGB rgb(255, 99, 71)

HSL hsl(9 100% 64%)

CMYK cmyk(0, 61, 72, 0)

Luminance 0.3064

Contrast Black 7.13:1White 2.95:1

CSS

--color-ff6347: #FF6347;
.background-ff6347 { background-color: #FF6347; }
.text-ff6347 { color: #FF6347; }

HEX meaning and use

About #FF6347

#FF6347 is classified as a warm red value with vibrant visual character. #FF6347 is visually closest to Tomato, a named red color with HEX #FF6347.

The RGB channels are 255, 99, and 71, with red carrying the strongest channel weight. In HSL, the hue is 9deg with 100% saturation and 64% 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 0.3064, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 0.00, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text7.13:1AA Pass

White text2.95:1AA Fail

AA text options: #000000, #1A1A1A.

AAA text options: #000000.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #FF6347 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000007.13:1 · AAA

White text#FFFFFF2.95:1 · Fail

Accessible Alternatives

#47E3FF#47E3FF · #000000 text · best 13.7:1 #FFBF47#FFBF47 · #000000 text · best 12.8:1 #FFB1A3#FFB1A3 · #000000 text · best 12.07:1 Coral#FF7F50 · #000000 text · best 8.4:1 Burnt Sienna#E97451 · #000000 text · best 7.08:1

Generated Palette

Tomato#FF6347

#47E3FF#47E3FF

#FF4788#FF4788

#FFBF47#FFBF47

#FFB1A3#FFB1A3

#EB2300#EB2300

Color Harmonies

#47E3FF#47E3FF

#FF4788#FF4788

#FFBF47#FFBF47

#47FF63#47FF63

#6347FF#6347FF

Variants

#FFB1A3#FFB1A3

#EB2300#EB2300

Tomato#FF6347

#EB715C#EB715C

#FBD2CB#FBD2CB

#FF8670#FF8670

Nearest Named Colors

Tomato#FF6347

Tulip Red#FF4D4D

Coral#FF7F50

Burnt Sienna#E97451

Terracotta#E2725B

Luminance0.3064

Black text7.13:1AA Pass

White text2.95:1AA 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":"#FF6347","rgb":[255,99,71],"hsl":[9,100,64],"cmyk":[0,61,72,0],"luminance":0.3064,"contrast":{"black":7.13,"white":2.95}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":7.13,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":2.95,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"#47E3FF","hex":"#47E3FF","family":"cyan","bestTextColor":"#000000","contrastBlack":13.7,"contrastWhite":1.53,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#FFBF47","hex":"#FFBF47","family":"orange","bestTextColor":"#000000","contrastBlack":12.8,"contrastWhite":1.64,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#FFB1A3","hex":"#FFB1A3","family":"red","bestTextColor":"#000000","contrastBlack":12.07,"contrastWhite":1.74,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"Coral","hex":"#FF7F50","family":"orange","bestTextColor":"#000000","contrastBlack":8.4,"contrastWhite":2.5,"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","Tomato 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/ff6347.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/tomato.json","https://www.colorsencyclopedia.com/api/colors/tulip-red.json","https://www.colorsencyclopedia.com/api/colors/coral.json"]}

Harmonies

{"complementary":"#47E3FF","analogous":["#FF4788","#FFBF47"],"triadic":["#47FF63","#6347FF"],"tetradic":["#88FF47","#47E3FF","#BF47FF"],"splitComplementary":["#47FFBF","#4788FF"],"monochromatic":["#FFB1A3","#FF6347","#EB2300"]}

Variants

{"light":"#FFB1A3","dark":"#EB2300","saturated":"#FF6347","desaturated":"#EB715C","pastel":"#FBD2CB","neon":"#FF8670"}

Nearest named colors

[{"slug":"tomato","name":"Tomato","hex":"#FF6347","distance":0},{"slug":"tulip-red","name":"Tulip Red","hex":"#FF4D4D","distance":22.80350850198276},{"slug":"coral","name":"Coral","hex":"#FF7F50","distance":29.410882339705484},{"slug":"burnt-sienna","name":"Burnt Sienna","hex":"#E97451","distance":29.546573405388315},{"slug":"terracotta","name":"Terracotta","hex":"#E2725B","distance":38.28837943815329}]

#FF6347

CSS

About #FF6347

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