# Glassmorphism Generator

> Visual builder for frosted-glass cards. Sliders for blur, opacity, saturation, border — copy CSS or Tailwind.

- URL: https://generate.now/glassmorphism
- Category: color
- Price: free, no account required
- AI-powered: no
- Last updated: 2026-08-27

## What it does

A live workbench for glassmorphism. Adjust backdrop blur, background opacity, saturation, border, and corner radius and see the result on a sample card over a colorful backdrop. Export as CSS or Tailwind classes.

## When to use it

- Build a glass nav bar that floats over a hero image
- Get the right blur amount for a frosted modal backdrop
- Translate a Figma glass card into production-ready CSS
- Test how a glass treatment reads in light and dark mode

## Examples

### blur 12px, opacity 60%, saturation 140%

```
background: rgba(255,255,255,0.6); backdrop-filter: blur(12px) saturate(1.4);
```

A typical glass card surface.

### tinted glass over dark hero

```
background: rgba(20,20,30,0.5); backdrop-filter: blur(20px) saturate(1.2); border: 1px solid rgba(255,255,255,0.08);
```

Darker glass with a hairline highlight border for a clear edge.

### Tailwind output for a light glass card

```
backdrop-blur-xl bg-white/60 saturate-150 border border-white/20 rounded-2xl
```

The same treatment expressed in utility classes rather than raw CSS.

### frosted modal backdrop

```
background: rgba(10, 10, 12, 0.4); backdrop-filter: blur(24px);
```

Heavier blur and a dark tint, so the modal content stays the focal point.

## Frequently asked questions

### Why doesn't backdrop-filter work in my browser?

Most evergreen browsers support backdrop-filter, but it requires -webkit-backdrop-filter for Safari. The generated CSS includes the prefix automatically.

### Does glassmorphism work over solid backgrounds?

The blur effect only does meaningful work when there's something behind it to blur. Over a flat solid color you'll just see the background tint — pair it with imagery, gradients, or a busy backdrop.

### What's a good starting point for blur and opacity?

Try 10–16px blur with 50–70% background opacity. Boosting saturation by 20–40% (saturate(1.2)–saturate(1.4)) keeps colors from going grey.

### Why is nothing blurring behind my element?

backdrop-filter blurs whatever is painted behind the element, so the element's own background has to be partially transparent for any of it to show. A solid background:#fff cancels the effect entirely. Start around rgba(255, 255, 255, 0.6) and adjust from there.

### Why does the blur spill past the rounded corners in Safari?

Safari needs the -webkit-backdrop-filter prefix, and it clips the backdrop against the element's own border-radius rather than an ancestor's. Set border-radius and overflow: hidden on the same element that carries the backdrop-filter.

### Is glassmorphism accessible?

It can be, but contrast becomes a moving target — the text sits over whatever happens to be scrolling underneath. Test against the worst-case backdrop rather than the demo image, and if you can't hold 4.5:1 for body text, put the text on a more opaque inner layer and keep the glass purely decorative.

## References

- [backdrop-filter](https://developer.mozilla.org/en-US/docs/Web/CSS/backdrop-filter) — MDN Web Docs. The property that produces the frosted-glass blur, plus its browser support notes.
- [Filter Effects Module Level 1](https://www.w3.org/TR/filter-effects-1/) — W3C. Defines the filter functions that backdrop-filter accepts, including blur() and saturate().
- [Understanding SC 1.4.3: Contrast (Minimum)](https://www.w3.org/WAI/WCAG22/Understanding/contrast-minimum.html) — W3C WAI. Why translucent surfaces need contrast checking against the worst-case backdrop.

## Related tools

- [CSS Box Shadow Generator](https://generate.now/box-shadow): Build CSS shadows with sliders for offset, blur, spread, color, and opacity. Live preview, multi-shadow stacking, copy as CSS or Tailwind.
- [CSS Gradient Generator](https://generate.now/gradient): Build linear and radial gradients visually. Pick stops, angle, and direction; copy as CSS or Tailwind arbitrary value.
- [Color Palette Generator](https://generate.now/palette): Type a vibe — 'desert at dusk', 'cyberpunk lab' — and get a 5-color palette with hex, RGB, HSL, and OKLCH for every swatch.