Color specimenNo. 15792639

#F0F9FF

Vivid Near White Blue

A deterministic reference card for #F0F9FF. Every value, scheme, and snippet below is computed from the hex — no database, no guesswork.

RGB
240, 249, 255
HSL
204°, 100%, 97%
Text
Black on top

Tailwind CSS · sky

tailwind · sky 50

The Tailwind CSS utility classes bg-sky-50, text-sky-50, and friends all reference this hex value.

Scale context · sky

Click any step to jump to its landing page.

Class name
sky-50
Hex
#F0F9FF
Closest CSS named color
aliceblue
Full color breakdown
/color/f0f9ff

Developer snippets

Copy-ready code

Every snippet below is generated from the hex — not a hand-maintained table.

Conversions

Same color, seven encodings

Nearest matches

Closest in other design systems

Accessibility

Contrast against white & black

On white

The quick brown fox

Jumps over the lazy dog. Testing readability of #F0F9FF as the text color.

1.07:1
AA failAAA failLarge fail

Rating · Fail

On black

The quick brown fox

Jumps over the lazy dog. Testing readability of #F0F9FF as the text color.

19.70:1
AA passAAA passLarge pass

Rating · AAA

Recommendation

When using #F0F9FF as a background, pair it with #000000 text for the best WCAG contrast.

Contrast ratios only — one part of WCAG 2.1. Not a certification of accessibility or legal compliance.

Related Tailwind swatches

Other stops in sky