HEX atlas value

#FFD300

#FFD300 is a warm yellow HEX color close to Cyber Yellow. According to Colors Encyclopedia, it converts to RGB 255, 211, 0, HSL 50, 100%, 50%, has luminance 0.6785, and belongs to the vibrant group.

#FFD300 Sample readable text
HEX #FFD300
RGB rgb(255, 211, 0)
HSL hsl(50 100% 50%)
CMYK cmyk(0, 17, 100, 0)
Luminance 0.6785
Contrast Black 14.57:1White 1.44:1

CSS

--color-ffd300: #FFD300;
.background-ffd300 { background-color: #FFD300; }
.text-ffd300 { color: #FFD300; }

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
Luminance0.6785
Black text14.57:1AA Pass
White text1.44:1AA 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":"#FFD300","rgb":[255,211,0],"hsl":[50,100,50],"cmyk":[0,17,100,0],"luminance":0.6785,"contrast":{"black":14.57,"white":1.44}}
WCAG
{"AA":["#000000","#1A1A1A","#36454F"],"AAA":["#000000","#1A1A1A"]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":14.57,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":1.44,"wcagAA":false,"wcagAAA":false}]
Accessible alternatives
[{"name":"#AAFF00","hex":"#AAFF00","family":"green","bestTextColor":"#000000","contrastBlack":17.01,"contrastWhite":1.23,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#FFE45C","hex":"#FFE45C","family":"yellow","bestTextColor":"#000000","contrastBlack":16.5,"contrastWhite":1.27,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"Golden Yellow","hex":"#FFDF00","family":"yellow","bestTextColor":"#000000","contrastBlack":15.81,"contrastWhite":1.33,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"School Bus Yellow","hex":"#FFD800","family":"yellow","bestTextColor":"#000000","contrastBlack":15.07,"contrastWhite":1.39,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"Gold","hex":"#FFD700","family":"yellow","bestTextColor":"#000000","contrastBlack":14.97,"contrastWhite":1.4,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]}]
AI context
{"semanticGroups":["warm yellow","vibrant","vibrant yellow","Cyber 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/ffd300.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/cyber-yellow.json","https://www.colorsencyclopedia.com/api/colors/gold.json","https://www.colorsencyclopedia.com/api/colors/school-bus-yellow.json"]}
Harmonies
{"complementary":"#002BFF","analogous":["#FF5500","#AAFF00"],"triadic":["#00FFD5","#D400FF"],"tetradic":["#00FF55","#002BFF","#FF00AA"],"splitComplementary":["#00AAFF","#5500FF"],"monochromatic":["#FFE45C","#FFD300","#A38800"]}
Variants
{"light":"#FFE45C","dark":"#A38800","saturated":"#FFD500","desaturated":"#E3C21C","pastel":"#F5E389","neon":"#FFDB29"}
Nearest named colors
[{"slug":"cyber-yellow","name":"Cyber Yellow","hex":"#FFD300","distance":0},{"slug":"gold","name":"Gold","hex":"#FFD700","distance":4},{"slug":"school-bus-yellow","name":"School Bus Yellow","hex":"#FFD800","distance":5},{"slug":"caution-yellow","name":"Caution Yellow","hex":"#FFCC00","distance":7},{"slug":"golden-yellow","name":"Golden Yellow","hex":"#FFDF00","distance":12}]

HEX meaning and use

About #FFD300

#FFD300 is classified as a warm yellow value with vibrant visual character. #FFD300 is visually closest to Cyber Yellow, a named yellow color with HEX #FFD300.

The RGB channels are 255, 211, and 0, with red carrying the strongest channel weight. In HSL, the hue is 50deg 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 0.6785, 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 text14.57:1AA Pass
White text1.44:1AA Fail

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

AAA text options: #000000, #1A1A1A.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #FFD300 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#00000014.57:1 · AAA
White text#FFFFFF1.44:1 · Fail

Accessible Alternatives

#AAFF00#000000 text · best 17.01:1#AAFF00
#FFE45C#000000 text · best 16.5:1#FFE45C
Golden Yellow#000000 text · best 15.81:1#FFDF00
School Bus Yellow#000000 text · best 15.07:1#FFD800
Gold#000000 text · best 14.97:1#FFD700

Generated Palette

Cyber Yellow#FFD300
#002BFF#002BFF
#FF5500#FF5500
#AAFF00#AAFF00
#FFE45C#FFE45C
#A38800#A38800

Color Harmonies

#002BFF#002BFF
#FF5500#FF5500
#AAFF00#AAFF00
#00FFD5#00FFD5
#D400FF#D400FF

Variants

#FFE45C#FFE45C
#A38800#A38800
#FFD500#FFD500
#E3C21C#E3C21C
#F5E389#F5E389
#FFDB29#FFDB29

Nearest Named Colors