HEX atlas value

#FFF600

#FFF600 is a warm yellow HEX color close to Cadmium Yellow. According to Colors Encyclopedia, it converts to RGB 255, 246, 0, HSL 58, 100%, 50%, has luminance 0.8717, and belongs to the vibrant group.

#FFF600 Sample readable text
HEX #FFF600
RGB rgb(255, 246, 0)
HSL hsl(58 100% 50%)
CMYK cmyk(0, 4, 100, 0)
Luminance 0.8717
Contrast Black 18.43:1White 1.14:1

CSS

--color-fff600: #FFF600;
.background-fff600 { background-color: #FFF600; }
.text-fff600 { color: #FFF600; }

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
Luminance0.8717
Black text18.43:1AA Pass
White text1.14:1AA 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":"#FFF600","rgb":[255,246,0],"hsl":[58,100,50],"cmyk":[0,4,100,0],"luminance":0.8717,"contrast":{"black":18.43,"white":1.14}}
WCAG
{"AA":["#000000","#1A1A1A","#36454F"],"AAA":["#000000","#1A1A1A","#36454F"]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":18.43,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":1.14,"wcagAA":false,"wcagAAA":false}]
Accessible alternatives
[{"name":"Yellow","hex":"#FFFF00","family":"yellow","bestTextColor":"#000000","contrastBlack":19.56,"contrastWhite":1.07,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#FFFA5C","hex":"#FFFA5C","family":"yellow","bestTextColor":"#000000","contrastBlack":19.08,"contrastWhite":1.1,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"Lemon","hex":"#FFF700","family":"yellow","bestTextColor":"#000000","contrastBlack":18.56,"contrastWhite":1.13,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"Canary Yellow","hex":"#FFEF00","family":"yellow","bestTextColor":"#000000","contrastBlack":17.6,"contrastWhite":1.19,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#88FF00","hex":"#88FF00","family":"green","bestTextColor":"#000000","contrastBlack":16.35,"contrastWhite":1.28,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]}]
AI context
{"semanticGroups":["warm yellow","vibrant","vibrant yellow","Cadmium Yellow adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","high-energy accents","highlight and warning systems"],"contrastSafeWith":["#000000","#1A1A1A","#36454F"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/fff600.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/cadmium-yellow.json","https://www.colorsencyclopedia.com/api/colors/lemon.json","https://www.colorsencyclopedia.com/api/colors/canary-yellow.json"]}
Harmonies
{"complementary":"#0008FF","analogous":["#FF7700","#88FF00"],"triadic":["#00FFF7","#F600FF"],"tetradic":["#00FF77","#0008FF","#FF0088"],"splitComplementary":["#0088FF","#7700FF"],"monochromatic":["#FFFA5C","#FFF600","#A39E00"]}
Variants
{"light":"#FFFA5C","dark":"#A39E00","saturated":"#FFF700","desaturated":"#E3DC1C","pastel":"#F5F289","neon":"#FFF829"}
Nearest named colors
[{"slug":"cadmium-yellow","name":"Cadmium Yellow","hex":"#FFF600","distance":0},{"slug":"lemon","name":"Lemon","hex":"#FFF700","distance":1},{"slug":"canary-yellow","name":"Canary Yellow","hex":"#FFEF00","distance":7},{"slug":"yellow","name":"Yellow","hex":"#FFFF00","distance":9},{"slug":"golden-yellow","name":"Golden Yellow","hex":"#FFDF00","distance":23}]

HEX meaning and use

About #FFF600

#FFF600 is classified as a warm yellow value with vibrant visual character. #FFF600 is visually closest to Cadmium Yellow, a named yellow color with HEX #FFF600.

The RGB channels are 255, 246, and 0, with red carrying the strongest channel weight. In HSL, the hue is 58deg with 100% saturation and 50% 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 0.8717, 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 text18.43:1AA Pass
White text1.14:1AA Fail

AA text options: #000000, #1A1A1A, #36454F.

AAA text options: #000000, #1A1A1A, #36454F.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #FFF600 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#00000018.43:1 · AAA
White text#FFFFFF1.14:1 · Fail

Accessible Alternatives

Yellow#000000 text · best 19.56:1#FFFF00
#FFFA5C#000000 text · best 19.08:1#FFFA5C
Lemon#000000 text · best 18.56:1#FFF700
Canary Yellow#000000 text · best 17.6:1#FFEF00
#88FF00#000000 text · best 16.35:1#88FF00

Generated Palette

Cadmium Yellow#FFF600
#0008FF#0008FF
#FF7700#FF7700
#88FF00#88FF00
#FFFA5C#FFFA5C
#A39E00#A39E00

Color Harmonies

#0008FF#0008FF
#FF7700#FF7700
#88FF00#88FF00
#00FFF7#00FFF7
#F600FF#F600FF

Variants

#FFFA5C#FFFA5C
#A39E00#A39E00
Lemon#FFF700
#E3DC1C#E3DC1C
#F5F289#F5F289
#FFF829#FFF829

Nearest Named Colors