HEX atlas value

#FFFFFF

#FFFFFF is a neutral gray HEX color nearest White. RGB 255, 255, 255, HSL 0° 0% 100%, luminance 1; view contrast and conversions.

gray neutral light

#FFFFFF Sample readable text

HEX #FFFFFF

RGB rgb(255, 255, 255)

HSL hsl(0 0% 100%)

CMYK cmyk(0, 0, 0, 0)

Luminance 1

Contrast Black 21:1White 1:1

CSS

--color-ffffff: #FFFFFF;
.background-ffffff { background-color: #FFFFFF; }
.text-ffffff { color: #FFFFFF; }

HEX meaning and use

About #FFFFFF

#FFFFFF is classified as a neutral gray value with light visual character. #FFFFFF is visually closest to White, a named gray color with HEX #FFFFFF.

The RGB channels are 255, 255, and 255, with red carrying the strongest channel weight. In HSL, the hue is 0deg with 0% saturation and 100% lightness, so this page treats it as a low-saturation, light atlas color rather than a generic swatch.

Practical uses for this HEX value include color conversion, WCAG contrast checks, CSS color tokens, and light surfaces. Its luminance is 1, 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 text21:1AA Pass

White text1:1AA Fail

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

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

Accessibility-Safe Pairings and Alternatives

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

Black text#00000021:1 · AAA

White text#FFFFFF1:1 · Fail

Accessible Alternatives

Mint Cream#F5FFFA · #000000 text · best 20.57:1 Snow#FFFAFA · #000000 text · best 20.31:1 Ghost White#F8F8FF · #000000 text · best 19.86:1 Cool White#F4F8FF · #000000 text · best 19.72:1 #D1D1D1#D1D1D1 · #000000 text · best 13.75:1

Generated Palette

White#FFFFFF

#D1D1D1#D1D1D1

Color Harmonies

White#FFFFFF

Variants

White#FFFFFF

#D1D1D1#D1D1D1

White#FFFFFF

Nearest Named Colors

White#FFFFFF

Snow#FFFAFA

Ghost White#F8F8FF

Mint Cream#F5FFFA

Cool White#F4F8FF

Luminance1

Black text21:1AA Pass

White text1:1AA 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":"#FFFFFF","rgb":[255,255,255],"hsl":[0,0,100],"cmyk":[0,0,0,0],"luminance":1,"contrast":{"black":21,"white":1}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":21,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":1,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"Mint Cream","hex":"#F5FFFA","family":"green","bestTextColor":"#000000","contrastBlack":20.57,"contrastWhite":1.02,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"Snow","hex":"#FFFAFA","family":"red","bestTextColor":"#000000","contrastBlack":20.31,"contrastWhite":1.03,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"Ghost White","hex":"#F8F8FF","family":"blue","bestTextColor":"#000000","contrastBlack":19.86,"contrastWhite":1.06,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"Cool White","hex":"#F4F8FF","family":"blue","bestTextColor":"#000000","contrastBlack":19.72,"contrastWhite":1.07,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#D1D1D1","hex":"#D1D1D1","family":"gray","bestTextColor":"#000000","contrastBlack":13.75,"contrastWhite":1.53,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]}]

AI context

{"semanticGroups":["neutral gray","light","light gray","White adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","light surfaces","neutral UI systems"],"contrastSafeWith":["#000000","#1A1A1A","#36454F"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/ffffff.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/white.json","https://www.colorsencyclopedia.com/api/colors/snow.json","https://www.colorsencyclopedia.com/api/colors/ghost-white.json"]}

Harmonies

{"complementary":"#FFFFFF","analogous":["#FFFFFF","#FFFFFF"],"triadic":["#FFFFFF","#FFFFFF"],"tetradic":["#FFFFFF","#FFFFFF","#FFFFFF"],"splitComplementary":["#FFFFFF","#FFFFFF"],"monochromatic":["#FFFFFF","#FFFFFF","#D1D1D1"]}

Variants

{"light":"#FFFFFF","dark":"#D1D1D1","saturated":"#FFFFFF","desaturated":"#FFFFFF","pastel":"#FFFFFF","neon":"#FFFFFF"}

Nearest named colors

[{"slug":"white","name":"White","hex":"#FFFFFF","distance":0},{"slug":"snow","name":"Snow","hex":"#FFFAFA","distance":7.0710678118654755},{"slug":"ghost-white","name":"Ghost White","hex":"#F8F8FF","distance":9.899494936611665},{"slug":"mint-cream","name":"Mint Cream","hex":"#F5FFFA","distance":11.180339887498949},{"slug":"cool-white","name":"Cool White","hex":"#F4F8FF","distance":13.038404810405298}]

#FFFFFF

CSS

About #FFFFFF

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