devices, services, or environments for people with disabilities. Web accessibility refers to the inclusive practice of removing barriers that prevent interaction with, or access to websites, by people with disabilities. When sites are correctly designed, developed and edited, all users have equal access to information and functionality. - Wikipedia: ‘Accessibility’ and ‘Web Accessibility’
many aspects of life: education, employment, government, commerce, health care, recreation, social interaction, and more. The Web is used not only for receiving information, but also for providing information and interacting with society.” - W3C: 'Overview'
be accessible to people with disabilities. • Part of a 1998 amendment to the Rehabilitation Act of 1973. • “Applies to all Federal agencies when they develop, procure, maintain, or use electronic and information technology.”
with a goal of providing a single shared standard for web content accessibility that meets the needs of individuals, organizations, and governments internationally. - WCAG: 'Overview' The World Wide Web Consortium (W3C) is an international community where Member organizations, a full-time staff, and the public work together to develop Web standards. Led by Web inventor Tim Berners-Lee and CEO Jeffrey Jaffe, W3C’ s mission is to lead the Web to its full potential.
can be added to any markup, but is especially suited to HTML. The ‘role’ attribute defines what the general type of object is (such as an article, alert, or slider). Additional ARIA attributes provide other useful properties, such as a description for a form or the current value of a progressbar. - MDN: 'An overview of accessible web applications and widgets'
Evaluation Tool • NC State University Color Contrast Checker • Paciello: Color Contrast Checker • VoiceOver - OS X Screen Reader • Tota11y - An accessibility visualization toolkit • Paletton - Color perception simulation • Juicy Studio: Readability