Backdrop Blur
Backdrop blur softens what sits behind a clear surface. It doesn't blur the surface’s own content.
Another example
A clear sticky header blurs the content moving behind it while its own text stays sharp.
Main parts
- 01Content surface
- 02Distinct visual treatment
- 03Action and readability check
Use it when
Use it when a floating surface should keep some background context and still has enough contrast.
Do not use it when
Never use strong blur across large areas or use blur in place of readable contrast.
Name used in code
backdrop-filter: blur() Before you ship
Check content order, shared design values, component consistency, contrast, zoom, and layout changes by screen size. Verify every theme, language, and state. If there is motion, offer an equal reduced-motion experience.
Outcome: Use or define Backdrop Blur to make the visual experience clear and easy to use. User context: A clear sticky header blurs the content moving behind it while its own text stays sharp. Design concept to apply: Backdrop Blur. Why it fits: Use it when a floating surface should keep some background context and still has enough contrast. Do not use it when: Never use strong blur across large areas or use blur in place of readable contrast. Design requirements: Set the content order, shared design values, and reusable components. Define how the layout changes by screen size and state. Keep useful design choices separate from decoration. Inclusion and resilience: Check contrast, zoom, languages, themes, and reduced motion when needed. Do not use color or effects as the only way to show meaning. Acceptance criteria: The design stays clear on phones and desktops, at zoom, in every theme, and in all supported languages. Interactive states stay clear and consistent. Evidence and limits (evidence boundary): A formal document may still be a draft, release candidate, or final version. Check its status and browser or platform support. Unknowns to confirm: Brand limits, amount of content, supported themes and languages, target devices, and design-system rules.
Check this request
Review the current use of Backdrop Blur. Definition: Backdrop blur softens what sits behind a clear surface. It doesn't blur the surface’s own content. Release checks: Check content order, shared design values, component consistency, contrast, zoom, and layout changes by screen size. Verify every theme, language, and state. If there is motion, offer an equal reduced-motion experience. Before changing code, report the evidence you found, gaps, severity, and the smallest safe fix.