Resources

Software

• Colour Contrast Analyser (Mac/Win)
• Color Oracle (Mac/Win)
• WAVE (Firefox Extension)
• WAT (IE/Opera)

Screen Readers

• NVDA (Win)
• JAWS (Win)
• VoiceOver (Mac)
• VoiceOver for iOS (iOS)
• Chrome Vox (ChromeOS)

HTML Related

• HTML5 Accessibility
• W3C WAI-ARIA Specification
• W3C: Recommended ARIA usage by feature

Books

• Pro HTML5 Accessibility by Joshue O Connor
• Web Accessibility: Web Standards and Regulatory Compliance by Jim Thatcher
• Designing with Web Standards by Jeffrey Zeldman
• Adaptive Web Design by Aaron Gustafson
• Designing with Progressive Enhancement by The Filament Group

Blogs

• WebAxe Blog and Podcast
• The Paciello Group Blog
• 456 Berea Street
• Yahoo! Accessibility Blog
• Accessible Culture
• A11y Buzz

Further Reading

• Web Accessibility for Designers [Infographic]
• Aaron Cannon, Blind Web Developer [Video]
• Accessibility Checklist by Aaron Cannon
• PDF Checklist by Cameron Moll
• Apple’s Commitment to Accessibility
• Dive Into Accessibility: 30 days to a more accessible web site
• We are Color Blind by Tom van Beveren
• Best practices to make your mobile site accessible
• 10 Easy Things All Web Developers Should Do

Professional help

• WebAIM
• Simply Accessible
• Knowbility
• The Paciello Group
• Deque

Online Tools

WAVE - web accessibility evaluation tool

Colorblind Web Page Filter

Contrast Ratio by Lea Verou

Contrast-A Accessible color combinations tool

HTML_CodeSniffer