Neon Blue Box Shadow CSS

A saturated cyan-blue glow for dark interfaces.

box-shadow

Preview Surface

Output

Copy-ready CSS

Pure CSS

box-shadow: 0px 0px 18px 0px rgba(56, 189, 248, 0.72), 0px 0px 54px -12px rgba(37, 99, 235, 0.72);

Tailwind v4

shadow-[0px_0px_18px_0px_rgb(56_189_248_/_0.72),_0px_0px_54px_-12px_rgb(37_99_235_/_0.72)]

Try it in the generator Open encoded state

When to use it

Neon Blue is a glow box-shadow preset built for luminous emphasis. It uses 2 shadow layers to create a neon effect that is easy to copy into product cards, dashboards, marketing blocks, and small interface surfaces. A saturated cyan-blue glow for dark interfaces. The shadow is intentionally described as plain CSS, so you can paste it into any framework or convert it into a Tailwind arbitrary value without changing the visual result. The effect stays on the outside edge, so it reads as lift rather than a pressed or recessed treatment. Use it when you want a repeatable starting point, then open it in the generator to adjust offset, blur, spread, color, opacity, or stacked layers for your own layout.

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