Colors Encyclopedia

HEX atlas value

#FF4D4D

#FF4D4D is a warm red HEX color close to Tulip Red. According to Colors Encyclopedia, it converts to RGB 255, 77, 77, HSL 0, 100%, 65%, has luminance 0.271, and belongs to the vibrant group.

redwarmvibrant
#FF4D4D Sample readable text
HEX #FF4D4D
RGB rgb(255, 77, 77)
HSL hsl(0 100% 65%)
CMYK cmyk(0, 70, 70, 0)
Luminance 0.271
Contrast Black 6.42:1White 3.27:1

CSS

--color-ff4d4d: #FF4D4D;
.background-ff4d4d { background-color: #FF4D4D; }
.text-ff4d4d { color: #FF4D4D; }

Machine-readable data

Machine-Readable HEX Data (JSON)

Structured HEX color data for conversion, WCAG checks, CSS generation, automation, and AI ingestion.

AI-Ready Dataset v1.0.0
Luminance0.271
Black text6.42:1AA Pass
White text3.27:1AA 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
Download JSON Open API
Structured sections
Color systems
{"hex":"#FF4D4D","rgb":[255,77,77],"hsl":[0,100,65],"cmyk":[0,70,70,0],"luminance":0.271,"contrast":{"black":6.42,"white":3.27}}
WCAG
{"AA":["#000000","#1A1A1A"],"AAA":[]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":6.42,"wcagAA":true,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":3.27,"wcagAA":false,"wcagAAA":false}]
Accessible alternatives
[{"name":"#4DFFFF","hex":"#4DFFFF","family":"cyan","bestTextColor":"#000000","contrastBlack":17.06,"contrastWhite":1.23,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#FFA8A8","hex":"#FFA8A8","family":"red","bestTextColor":"#000000","contrastBlack":11.42,"contrastWhite":1.84,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#FFA64D","hex":"#FFA64D","family":"orange","bestTextColor":"#000000","contrastBlack":10.81,"contrastWhite":1.94,"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":"#FF4DA6","hex":"#FF4DA6","family":"pink","bestTextColor":"#000000","contrastBlack":6.86,"contrastWhite":3.06,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":[]}]
AI context
{"semanticGroups":["warm red","vibrant","vibrant red","Tulip Red 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/ff4d4d.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/tulip-red.json","https://www.colorsencyclopedia.com/api/colors/tomato.json","https://www.colorsencyclopedia.com/api/colors/vermilion.json"]}
Harmonies
{"complementary":"#4DFFFF","analogous":["#FF4DA6","#FFA64D"],"triadic":["#4DFF4D","#4D4DFF"],"tetradic":["#A6FF4D","#4DFFFF","#A64DFF"],"splitComplementary":["#4DFFA6","#4DA6FF"],"monochromatic":["#FFA8A8","#FF4D4D","#F00000"]}
Variants
{"light":"#FFA8A8","dark":"#F00000","saturated":"#FF4D4D","desaturated":"#EB6060","pastel":"#FBD0D0","neon":"#FF7575"}
Nearest named colors
[{"slug":"tulip-red","name":"Tulip Red","hex":"#FF4D4D","distance":0},{"slug":"tomato","name":"Tomato","hex":"#FF6347","distance":22.80350850198276},{"slug":"vermilion","name":"Vermilion","hex":"#E34234","distance":39.11521443121589},{"slug":"cinnabar","name":"Cinnabar","hex":"#E44D2E","distance":41.10960958218893},{"slug":"spinel","name":"Spinel","hex":"#D83A56","distance":44.30575583375144}]
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

HEX meaning and use

About #FF4D4D

#FF4D4D is classified as a warm red value with vibrant visual character. #FF4D4D is visually closest to Tulip Red, a named red color with HEX #FF4D4D.

The RGB channels are 255, 77, and 77, with red carrying the strongest channel weight. In HSL, the hue is 0deg with 100% saturation and 65% 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 0.271, 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 text6.42:1AA Pass
White text3.27:1AA Fail

AA text options: #000000, #1A1A1A.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #FF4D4D needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000006.42:1 · AA
White text#FFFFFF3.27:1 · Fail

Accessible Alternatives

#4DFFFF#000000 text · best 17.06:1#4DFFFF
#FFA8A8#000000 text · best 11.42:1#FFA8A8
#FFA64D#000000 text · best 10.81:1#FFA64D
Tomato#000000 text · best 7.13:1#FF6347
#FF4DA6#000000 text · best 6.86:1#FF4DA6

Generated Palette

Tulip Red#FF4D4D
#4DFFFF#4DFFFF
#FF4DA6#FF4DA6
#FFA64D#FFA64D
#FFA8A8#FFA8A8
#F00000#F00000

Color Harmonies

#4DFFFF#4DFFFF
#FF4DA6#FF4DA6
#FFA64D#FFA64D
#4DFF4D#4DFF4D
#4D4DFF#4D4DFF

Variants

#FFA8A8#FFA8A8
#F00000#F00000
Tulip Red#FF4D4D
#EB6060#EB6060
#FBD0D0#FBD0D0
#FF7575#FF7575

Nearest Named Colors

Tulip Red#FF4D4D
Tomato#FF6347
Vermilion#E34234
Cinnabar#E44D2E
Spinel#D83A56

Related HEX Guides

Tulip Red colorOpen the nearest named color reference for #FF4D4D.Tomato colorOpen the nearest named color reference for #FF6347.Vermilion colorOpen the nearest named color reference for #E34234.Red color familyBrowse named red colors related to this HEX value.Warm colorsExplore colors with similar temperature behavior.Vibrant colorsFind colors in the vibrant group.Color palettesBrowse palette systems related to generated color combinations.Compare colorsCompare named colors near this HEX value.Accessible colorsBrowse WCAG-friendly named colors and safe text options.#FF4D4D APIOpen the machine-readable JSON record for this HEX value.