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Measured entry

animata-blurry-blob

background-effectaurora-meshmotion on file

A React and Tailwind background effect made from two absolutely positioned, blurred color blocks that pulse through a custom keyframe. It ships as a shadcn registry component, imports a cn helper, and relies on clsx plus tailwind-merge behind that helper.

Specimen
Motion capture of the mounted demo, recorded by the harness. No audio track.
Harness screenshot of animata-blurry-blob at 375 pixels wide
Harness screenshot at 375 pixels wide. This viewport scrolled sideways.
Harness screenshot of animata-blurry-blob at 768 pixels wide
Harness screenshot at 768 pixels wide. No horizontal overflow recorded.
Harness screenshot of animata-blurry-blob at 1440 pixels wide
Harness screenshot at 1440 pixels wide. No horizontal overflow recorded.

Measured

Every value below was written by the harness on the run that produced the frames above. None of it is derived from the prose.

Harness measurements recorded for animata-blurry-blob
BuildOK
MountOK
Console errors0
Uncaught page errors0
Horizontal overflowflagged at 375
Axe critical0
Axe serious0
Axe moderate0
Axe minor0
Gzip marginal29.2 KB (94.7 KB build, 65.5 KB baseline)
Bare modeOK
Provider requiredNO
Demo usedwritten from the component source API

Verdict

A compact, editable ambient background with clean build, mount, and accessibility results. Its fixed, negatively offset blobs overflow at the narrow tested viewport, so add clipping or responsive positioning before using it in mobile layouts.

Use it if

  • You want a soft animated color wash behind a hero, card, or empty state.
  • Your Tailwind theme can include the supplied pop-blob animation and keyframes.
  • You want callers to choose both blob colors with utility classes.

Skip it if

  • Your layout must never spill horizontally on narrow screens without extra containment.
  • You need motion to honor reduced-motion preferences without modifying the component.
  • You want a self-contained effect that does not depend on Tailwind utilities or a cn helper.

Install

Installation record for animata-blurry-blob
Declared dependenciesclsx, tailwind-merge
Missing on installnone
Bare installbuilds and mounts without the shadcn-style helpers
Providerno provider required in the harness

In a non-shadcn project, add Tailwind, define the pop-blob keyframes and animation in the theme or stylesheet, install clsx and tailwind-merge, provide a compatible cn helper, and replace the aliased utils import if your project does not support it.

Source and credit

This page is a review, not a copy. The component source lives with its author and this site does not republish it. Read the license before you use anything.

Author repository

github.com/codse/animata
License
MIT
Record published
2026-08-17

Alternatives

Other published entries for the background-effect pattern, ordered by what they measured: mounts first, then clean axe scans, then bare-mode passes, then the smaller bundle.