Designer

Glassmorphism CSS Generator

Generate frosted glass UI effects with transparency, backdrop blur, and copy-ready CSS.

Designer

Why Use the Glassmorphism CSS Generator?

Frosted glass panels look effortless in mockups but take several CSS properties to reproduce, and this glassmorphism CSS generator assembles them in one step. Choose a glass tint and a background color, then move a single intensity slider that adjusts transparency and blur together while a live card preview shows the frosted effect. The copied code includes an rgba background, backdrop-filter with the -webkit- prefix, a subtle border, a soft shadow and rounded corners, ready for modals, navigation bars and dashboard cards.

How to Use the Glassmorphism CSS Generator

  1. Pick the glass tint color, which colors the translucent card itself, using the picker or a HEX, rgb(), hsl() or CSS color name value.
  2. Set the background color to something close to the page or image the glass will sit on, so the preview reflects your real layout.
  3. Drag the intensity slider to change how transparent and how blurred the glass looks, and check that the card text stays easy to read.
  4. Click Copy on the CSS output and apply it to your card, then place colorful content behind that element so the blur has something to frost.

Best For

  • Styling a sticky navigation bar that softly blurs the page content scrolling underneath it.
  • Designing login or sign-up cards that float over a photo or gradient hero background.
  • Building dashboard widgets and stat cards for a modern, layered interface.
  • Creating modal dialogs and pop-overs that keep a hint of the page visible behind them.

Pro Tip

Glassmorphism only reads as glass when there is detail or color behind it, so pair the card with a gradient, blurred shapes or a photo rather than a flat fill. For text-heavy cards, raise the intensity until the tint is opaque enough to keep body text above 4.5:1 contrast against the busiest part of the background. Use the effect on a few key surfaces only, since backdrop-filter is relatively expensive to render on low-power phones.

FAQ

Glassmorphism CSS Generator FAQ

What is glassmorphism in UI design?

Glassmorphism is a visual style where interface panels look like frosted glass: semi-transparent, blurred behind and edged with a faint light border. It creates a sense of depth and layering while letting background colors show through. The style became popular in modern operating system and app interfaces.

How do I create a frosted glass effect in CSS?

Give the element a semi-transparent background, such as an rgba() color, and add backdrop-filter: blur() with a value like 10px to blur whatever is behind it. Include -webkit-backdrop-filter for older Safari versions, then add a thin translucent border, a soft shadow and border-radius to finish the look.

Why is my backdrop-filter not working?

The most common cause is a fully opaque background on the element, which hides the blurred backdrop completely. The effect is also invisible if nothing colorful sits behind the element, and older Safari versions need the -webkit-backdrop-filter prefix. Check that the glass element overlaps other content and that its background color has an alpha value below 1.

Is glassmorphism accessible?

It can be, but translucent surfaces make text contrast change as the background behind them changes. Test text against the lightest and darkest areas that can appear behind the panel, and increase the tint opacity if contrast drops too low. Some users also turn on reduced transparency settings, so the design should still work with a solid background.

Learn more

Guides for the Glassmorphism CSS Generator

UI Design

Glassmorphism in CSS: How to Build Frosted Glass UI That Stays Readable

Build glassmorphism CSS that works: backdrop-filter blur with the -webkit- prefix, @supports fallbacks, readable text on busy backgrounds, and fast mobile UI.

Read Guide

Development

HEX Color Opacity: 8-Digit HEX, RGBA and a Full Transparency Table

Learn how HEX opacity works with 8-digit HEX codes, get a full transparency table from 100% to 0%, and know when to use #RRGGBBAA, rgba() or opacity.

Read Guide

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