HEX atlas value

#FFCC00

#FFCC00 is a warm yellow HEX color close to Caution Yellow. According to Colors Encyclopedia, it converts to RGB 255, 204, 0, HSL 48, 100%, 50%, has luminance 0.6445, and belongs to the vibrant group.

yellow warm vibrant

#FFCC00 Sample readable text

HEX #FFCC00

RGB rgb(255, 204, 0)

HSL hsl(48 100% 50%)

CMYK cmyk(0, 20, 100, 0)

Luminance 0.6445

Contrast Black 13.89:1White 1.51:1

CSS

--color-ffcc00: #FFCC00;
.background-ffcc00 { background-color: #FFCC00; }
.text-ffcc00 { color: #FFCC00; }

Luminance0.6445

Black text13.89:1AA Pass

White text1.51:1AA 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":"#FFCC00","rgb":[255,204,0],"hsl":[48,100,50],"cmyk":[0,20,100,0],"luminance":0.6445,"contrast":{"black":13.89,"white":1.51}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":13.89,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":1.51,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"#B2FF00","hex":"#B2FF00","family":"green","bestTextColor":"#000000","contrastBlack":17.2,"contrastWhite":1.22,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#FFDE5C","hex":"#FFDE5C","family":"yellow","bestTextColor":"#000000","contrastBlack":15.86,"contrastWhite":1.32,"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"]},{"name":"Cyber Yellow","hex":"#FFD300","family":"yellow","bestTextColor":"#000000","contrastBlack":14.57,"contrastWhite":1.44,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]}]

AI context

{"semanticGroups":["warm yellow","vibrant","vibrant yellow","Caution 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/ffcc00.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/caution-yellow.json","https://www.colorsencyclopedia.com/api/colors/cyber-yellow.json","https://www.colorsencyclopedia.com/api/colors/gold.json"]}

Harmonies

{"complementary":"#0033FF","analogous":["#FF4D00","#B2FF00"],"triadic":["#00FFCC","#CC00FF"],"tetradic":["#00FF4D","#0033FF","#FF00B2"],"splitComplementary":["#00B2FF","#4D00FF"],"monochromatic":["#FFDE5C","#FFCC00","#A38300"]}

Variants

{"light":"#FFDE5C","dark":"#A38300","saturated":"#FFCC00","desaturated":"#E3BB1C","pastel":"#F5E089","neon":"#FFD429"}

Nearest named colors

[{"slug":"caution-yellow","name":"Caution Yellow","hex":"#FFCC00","distance":0},{"slug":"cyber-yellow","name":"Cyber Yellow","hex":"#FFD300","distance":7},{"slug":"gold","name":"Gold","hex":"#FFD700","distance":11},{"slug":"school-bus-yellow","name":"School Bus Yellow","hex":"#FFD800","distance":12},{"slug":"amber","name":"Amber","hex":"#FFBF00","distance":13}]

HEX meaning and use

About #FFCC00

#FFCC00 is classified as a warm yellow value with vibrant visual character. #FFCC00 is visually closest to Caution Yellow, a named yellow color with HEX #FFCC00.

The RGB channels are 255, 204, and 0, with red carrying the strongest channel weight. In HSL, the hue is 48deg 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 0.6445, 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 text13.89:1AA Pass

White text1.51:1AA Fail

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

AAA text options: #000000, #1A1A1A.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #FFCC00 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#00000013.89:1 · AAA

White text#FFFFFF1.51:1 · Fail

Accessible Alternatives

#B2FF00#000000 text · best 17.2:1#B2FF00

#FFDE5C#000000 text · best 15.86:1#FFDE5C

School Bus Yellow#000000 text · best 15.07:1#FFD800

Gold#000000 text · best 14.97:1#FFD700

Cyber Yellow#000000 text · best 14.57:1#FFD300

Generated Palette

Caution Yellow#FFCC00

#0033FF#0033FF

#FF4D00#FF4D00

#B2FF00#B2FF00

#FFDE5C#FFDE5C

#A38300#A38300

Color Harmonies

#0033FF#0033FF

#FF4D00#FF4D00

#B2FF00#B2FF00

#00FFCC#00FFCC

#CC00FF#CC00FF

Variants

#FFDE5C#FFDE5C

#A38300#A38300

Caution Yellow#FFCC00

#E3BB1C#E3BB1C

#F5E089#F5E089

#FFD429#FFD429

Nearest Named Colors

Caution Yellow#FFCC00

Cyber Yellow#FFD300

Gold#FFD700

School Bus Yellow#FFD800

Amber#FFBF00

#FFCC00

CSS

Machine-Readable HEX Data (JSON)

About #FFCC00

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides