Blue Burst

#309cd0

Brighter saturated blue burst for crisp highlights

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About Blue Burst

Blue Burst punches harder than and without losing legibility. It's saturated enough to command attention but sits higher in value, brighter, more electric, so it doesn't feel heavy the way its duller neighbors can. This is the blue that actually looks alive on screen.

Use it as a primary accent in dashboards, fintech platforms, and health apps where you need something that reads fast and feels energetic without tipping into aggression. Active buttons, key metrics, status indicators, highlighted data points. It pairs well with clean backgrounds and darker text because the lightness keeps it from feeling cold. On standard monitors it stays true. On warmer displays it leans slightly more cyan, which actually helps it stand out in busy layouts.

The catch: it's too bright to anchor a whole interface the way does, and it'll exhaust faster if you overuse it. Test it early as an accent, not a foundation. Pair it with white space and it sings. Pair it with grays and watch how much faster your eye finds it than the cooler blues around it.

Gradient preview

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Conversions

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Code snippets

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Contrast checker

WCAG 2.1 contrast ratios. AA requires 4.5:1 for normal text, 3:1 for large. AAA requires 7:1 / 4.5:1.

On White #ffffff

Aa
3.09:1FailAA Large

On Gray 100 #f5f5f5

Aa
2.84:1Fail

On Gray 900 #18181b

Aa
5.73:1AAAAA Large

On Black #000000

Aa
6.79:1AAAAA Large

Variations

Shades

Darker variations, created by mixing toward black.

Tints

Lighter variations, created by mixing toward white.

Tones

Muted variations, created by reducing saturation.

Hues

Hue rotations around the color wheel.

Temperatures

Warm and cool shifts of this color.

Color harmonies

Complementary
Analogous
Triadic
Split Complementary
Tetradic

Suggested palettes

Palettes built around this color.

4 colors
3 colors
4 colors
4 colors

Community palettes

Published palettes that include this color.

Similar colors

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#009dc4
#36a5c9
#57a1ce
#619ad6

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