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WCAG Guideline 2.3.3: Animation from Interactions Explained

Estimated read time: 6–7 minutes

Guideline 2: Operable

The Operable principle means all users must be able to use and control web content. This includes protection from motion that causes discomfort or distraction.

Guideline 2.3: Seizures and Physical Reactions

Guideline 2.3 prevents content that triggers seizures or physical reactions. This includes motion effects and animation.

What Is Guideline 2.3.3 Animation from Interactions?

"Motion animation triggered by interaction can be disabled, unless the animation is essential to the functionality or the information being conveyed."

Guideline 2.3.3 Animation from Interactions is a Level AAA requirement in the Web Content Accessibility Guidelines (WCAG) .

  • Users must be able to turn off motion triggered by scrolling, clicking, or hovering. These are called interaction-triggered animations.
  • Exceptions: animations essential to functionality or information.
  • Applies to parallax effects, smooth scrolling, transitions, and other UI animations.

This gives users a smooth and comfortable experience.

For more, see AccessGuide: Moving Content .

Why Does It Matter?
  • Inclusivity: Motion animation can cause discomfort or trigger vestibular disorders in some users.
  • Legal Compliance: Animation from Interactions is a Level AAA requirement in WCAG 2.1 and 2.2.
  • Usability: Prevents discomfort and improves experience for all users.

For more, see W3C’s guidance on animation from interactions .

What Needs to Support Animation Control?
  • Buttons and toggles
  • Sliders and carousels
  • Any feature with motion animation triggered by interaction

All must provide a way to disable non-essential motion animations.

How to Make Animation from Interactions Accessible
  • Allow users to disable non-essential motion animation
  • Use safe animation techniques
  • Document animation policies
  • Test with users who are sensitive to motion

For more, see the W3C's Animation from Interactions Techniques .

Common Mistakes to Avoid
  • No way to disable motion animation
  • Animation essential to functionality not documented
  • Not testing with users who are sensitive to motion

Differences Between A, AA, and AAA for Guideline 2.3.3 in WCAG 2.2
  • Level A: Not applicable for this guideline.
  • Level AA: Not applicable for this guideline.
  • Level AAA: Requires users can disable motion animation triggered by interaction, unless essential. This is the core requirement for 2.3.3 and is mandatory for AAA conformance.

For more, see the W3C’s official documentation for 2.3.3 Animation from Interactions .

Quick Checklist
  • Users can disable non-essential motion animation
  • Animation policies are documented
  • Tested with users who are sensitive to motion

Summary

Guideline 2.3.3 protects users who are sensitive to motion. Let users disable non-essential animations. Test this control regularly and include it as a standard accessibility feature.