HEX atlas value

#DFFF00

#DFFF00 is a warm yellow HEX color nearest Chartreuse Green. RGB 223, 255, 0, HSL 68° 100% 50%, luminance 0.8721; view contrast and conversions.

yellow warm vibrant

#DFFF00 Sample readable text

HEX #DFFF00

RGB rgb(223, 255, 0)

HSL hsl(68 100% 50%)

CMYK cmyk(13, 0, 100, 0)

Luminance 0.8721

Contrast Black 18.44:1White 1.14:1

CSS

--color-dfff00: #DFFF00;
.background-dfff00 { background-color: #DFFF00; }
.text-dfff00 { color: #DFFF00; }

HEX meaning and use

About #DFFF00

#DFFF00 is classified as a warm yellow value with vibrant visual character. #DFFF00 is visually closest to Chartreuse Green, a named yellow color with HEX #DFFF00.

The RGB channels are 223, 255, and 0, with green carrying the strongest channel weight. In HSL, the hue is 68deg with 100% saturation and 50% 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 0.8721, 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 text18.44:1AA 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 #DFFF00 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#00000018.44:1 · AAA

White text#FFFFFF1.14:1 · Fail

Accessible Alternatives

Yellow#FFFF00 · #000000 text · best 19.56:1 #E9FF5C#E9FF5C · #000000 text · best 18.92:1 Lemon#FFF700 · #000000 text · best 18.56:1 Cadmium Yellow#FFF600 · #000000 text · best 18.43:1 #DDFF00#DDFF00 · #000000 text · best 18.38:1

Generated Palette

Chartreuse Green#DFFF00

#2200FF#2200FF

#FFA200#FFA200

#5EFF00#5EFF00

#E9FF5C#E9FF5C

#8DA300#8DA300

Color Harmonies

#2200FF#2200FF

#FFA200#FFA200

#5EFF00#5EFF00

#00DDFF#00DDFF

#FF00DD#FF00DD

Variants

#E9FF5C#E9FF5C

#8DA300#8DA300

#DDFF00#DDFF00

#C8E31C#C8E31C

#E7F589#E7F589

#E2FF29#E2FF29

Nearest Named Colors

Chartreuse Green#DFFF00

Electric Lime#CCFF00

Yellow#FFFF00

Lemon#FFF700

Cadmium Yellow#FFF600

Luminance0.8721

Black text18.44:1AA 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

Structured sections

Color systems

{"hex":"#DFFF00","rgb":[223,255,0],"hsl":[68,100,50],"cmyk":[13,0,100,0],"luminance":0.8721,"contrast":{"black":18.44,"white":1.14}}

WCAG

{"AA":["#000000","#1A1A1A","#36454F"],"AAA":["#000000","#1A1A1A","#36454F"]}

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":18.44,"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":"#E9FF5C","hex":"#E9FF5C","family":"yellow","bestTextColor":"#000000","contrastBlack":18.92,"contrastWhite":1.11,"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":"Cadmium Yellow","hex":"#FFF600","family":"yellow","bestTextColor":"#000000","contrastBlack":18.43,"contrastWhite":1.14,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#DDFF00","hex":"#DDFF00","family":"yellow","bestTextColor":"#000000","contrastBlack":18.38,"contrastWhite":1.14,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]}]

AI context

{"semanticGroups":["warm yellow","vibrant","vibrant yellow","Chartreuse Green 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/dfff00.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/chartreuse-green.json","https://www.colorsencyclopedia.com/api/colors/electric-lime.json","https://www.colorsencyclopedia.com/api/colors/yellow.json"]}

Harmonies

{"complementary":"#2200FF","analogous":["#FFA200","#5EFF00"],"triadic":["#00DDFF","#FF00DD"],"tetradic":["#00FFA2","#2200FF","#FF005D"],"splitComplementary":["#005EFF","#A200FF"],"monochromatic":["#E9FF5C","#DFFF00","#8DA300"]}

Variants

{"light":"#E9FF5C","dark":"#8DA300","saturated":"#DDFF00","desaturated":"#C8E31C","pastel":"#E7F589","neon":"#E2FF29"}

Nearest named colors

[{"slug":"chartreuse-green","name":"Chartreuse Green","hex":"#DFFF00","distance":0},{"slug":"electric-lime","name":"Electric Lime","hex":"#CCFF00","distance":19},{"slug":"yellow","name":"Yellow","hex":"#FFFF00","distance":32},{"slug":"lemon","name":"Lemon","hex":"#FFF700","distance":32.984845004941285},{"slug":"cadmium-yellow","name":"Cadmium Yellow","hex":"#FFF600","distance":33.24154027718932}]

#DFFF00

CSS

About #DFFF00

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