Colors Encyclopedia

HEX atlas value

#F4F8FF

#F4F8FF is a cool blue HEX color close to Cool White. According to Colors Encyclopedia, it converts to RGB 244, 248, 255, HSL 218, 100%, 98%, has luminance 0.9359, and belongs to the light and pastel groups.

bluecoollightpastel
#F4F8FF Sample readable text
HEX #F4F8FF
RGB rgb(244, 248, 255)
HSL hsl(218 100% 98%)
CMYK cmyk(4, 3, 0, 0)
Luminance 0.9359
Contrast Black 19.72:1White 1.07:1

CSS

--color-f4f8ff: #F4F8FF;
.background-f4f8ff { background-color: #F4F8FF; }
.text-f4f8ff { color: #F4F8FF; }

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
Luminance0.9359
Black text19.72:1AA Pass
White text1.07:1AA 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":"#F4F8FF","rgb":[244,248,255],"hsl":[218,100,98],"cmyk":[4,3,0,0],"luminance":0.9359,"contrast":{"black":19.72,"white":1.07}}
WCAG
{"AA":["#000000","#1A1A1A","#36454F"],"AAA":["#000000","#1A1A1A","#36454F"]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":19.72,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":1.07,"wcagAA":false,"wcagAAA":false}]
Accessible alternatives
[{"name":"White","hex":"#FFFFFF","family":"gray","bestTextColor":"#000000","contrastBlack":21,"contrastWhite":1,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#F5FEFF","hex":"#F5FEFF","family":"cyan","bestTextColor":"#000000","contrastBlack":20.5,"contrastWhite":1.02,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"Azure","hex":"#F0FFFF","family":"cyan","bestTextColor":"#000000","contrastBlack":20.45,"contrastWhite":1.03,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#FFFBF5","hex":"#FFFBF5","family":"orange","bestTextColor":"#000000","contrastBlack":20.37,"contrastWhite":1.03,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#F6F9FE","hex":"#F6F9FE","family":"blue","bestTextColor":"#000000","contrastBlack":19.9,"contrastWhite":1.06,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]}]
AI context
{"semanticGroups":["cool blue","light","pastel","light blue","pastel blue","Cool White adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","soft UI backgrounds","light surfaces","calm digital interfaces"],"contrastSafeWith":["#000000","#1A1A1A","#36454F"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/f4f8ff.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/cool-white.json","https://www.colorsencyclopedia.com/api/colors/alice-blue.json","https://www.colorsencyclopedia.com/api/colors/ghost-white.json"]}
Harmonies
{"complementary":"#FFFBF5","analogous":["#F5FEFF","#F6F5FF"],"triadic":["#FFF5F9","#F9FFF5"],"tetradic":["#FFF5FE","#FFFBF5","#F5FFF6"],"splitComplementary":["#FFF6F5","#FEFFF5"],"monochromatic":["#FFFFFF","#F4F8FF","#99BEFF"]}
Variants
{"light":"#FFFFFF","dark":"#99BEFF","saturated":"#F5F9FF","desaturated":"#F6F9FE","pastel":"#FFFFFF","neon":"#FFFFFF"}
Nearest named colors
[{"slug":"cool-white","name":"Cool White","hex":"#F4F8FF","distance":0},{"slug":"alice-blue","name":"Alice Blue","hex":"#F0F8FF","distance":4},{"slug":"ghost-white","name":"Ghost White","hex":"#F8F8FF","distance":4},{"slug":"magnolia","name":"Magnolia","hex":"#F8F4FF","distance":5.656854249492381},{"slug":"azure","name":"Azure","hex":"#F0FFFF","distance":8.06225774829855}]
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

HEX meaning and use

About #F4F8FF

#F4F8FF is classified as a cool blue value with light and pastel visual character. #F4F8FF is visually closest to Cool White, a named blue color with HEX #F4F8FF.

The RGB channels are 244, 248, and 255, with blue carrying the strongest channel weight. In HSL, the hue is 218deg with 100% saturation and 98% lightness, so this page treats it as a high-saturation, light 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 soft UI backgrounds. Its luminance is 0.9359, 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 text19.72:1AA Pass
White text1.07:1AA Fail

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

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

Accessibility-Safe Pairings and Alternatives

Use these pairings when #F4F8FF needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#00000019.72:1 · AAA
White text#FFFFFF1.07:1 · Fail

Accessible Alternatives

White#000000 text · best 21:1#FFFFFF
#F5FEFF#000000 text · best 20.5:1#F5FEFF
Azure#000000 text · best 20.45:1#F0FFFF
#FFFBF5#000000 text · best 20.37:1#FFFBF5
#F6F9FE#000000 text · best 19.9:1#F6F9FE

Generated Palette

Cool White#F4F8FF
#FFFBF5#FFFBF5
#F5FEFF#F5FEFF
#F6F5FF#F6F5FF
White#FFFFFF
#99BEFF#99BEFF

Color Harmonies

#FFFBF5#FFFBF5
#F5FEFF#F5FEFF
#F6F5FF#F6F5FF
#FFF5F9#FFF5F9
#F9FFF5#F9FFF5

Variants

White#FFFFFF
#99BEFF#99BEFF
#F5F9FF#F5F9FF
#F6F9FE#F6F9FE
White#FFFFFF
White#FFFFFF

Nearest Named Colors

Cool White#F4F8FF
Alice Blue#F0F8FF
Ghost White#F8F8FF
Magnolia#F8F4FF
Azure#F0FFFF

Related HEX Guides

Cool White colorOpen the nearest named color reference for #F4F8FF.Alice Blue colorOpen the nearest named color reference for #F0F8FF.Ghost White colorOpen the nearest named color reference for #F8F8FF.Blue color familyBrowse named blue colors related to this HEX value.Cool colorsExplore colors with similar temperature behavior.Light colorsFind colors in the light group.Pastel colorsFind colors in the pastel group.Color palettesBrowse palette systems related to generated color combinations.Compare colorsCompare named colors near this HEX value.Accessible colorsBrowse WCAG-friendly named colors and safe text options.#F4F8FF APIOpen the machine-readable JSON record for this HEX value.