Accessibility in Design: Principles for Inclusive Design
Accessibility Tools
Accessibility in Design
Principles for Inclusive Design - Creating experiences that empower everyone
Four Pillars of Accessible Design
Perceivable
Information must be presentable in ways users can perceive through alternative senses when one sense cannot be used.
Text with adjustable contrast and size
Operable
User interface components must be operable through various input methods including keyboard, voice, and assistive devices.
Understandable
Information and UI operation must be understandable with clear instructions and predictable functionality.
Clear, simple language with helpful guidance
Robust
Content must work reliably across different technologies and assistive tools, now and in the future.
Semantic HTML with proper ARIA labels
Accessibility Design Tools
Color Contrast Checker
Sample text for contrast testing
Font Size & Spacing Tool
Adjust font size and line height for optimal readability. Proper typography enhances comprehension for all users, especially those with dyslexia or visual impairments.
Keyboard Navigation Tester
Use Tab, Shift+Tab, Enter, and Arrow keys to navigate:
Disability Experience Simulation
Visual Impairment Simulation
This image demonstrates how visual filters affect perception.
Motor Impairment Simulation
Try clicking these buttons with motor simulations active:
Cognitive Load Simulation
Complete this simple task while simulations are active:
3D Inclusive Design Environment
3D Environment Features
- Adjustable interface heights and positions
- Multiple navigation methods (keyboard, voice, eye-tracking)
- Visual and audio feedback systems
- Assistive technology integration demonstrations
- Accessible design pattern examples
Inclusive Design Guidelines
WCAG 2.1 Quick Reference
Level A (Minimum)
- Alt text for images
- Keyboard navigation
- Proper heading structure
- Color contrast ratio 3:1
Level AA (Standard)
- Color contrast ratio 4.5:1
- Resize text up to 200%
- Focus indicators
- Audio controls
Level AAA (Enhanced)
- Color contrast ratio 7:1
- Sign language interpretation
- Context-sensitive help
- Error prevention
Design Checklist Generator
Accessibility Testing Tools
Automated Testing
- axe-core
- Lighthouse
- WAVE
- Pa11y
Manual Testing
- Screen reader testing
- Keyboard navigation
- Color contrast
- User testing
Assistive Technologies
- JAWS
- NVDA
- VoiceOver
- Dragon
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