- Perceivable: web-based content and interface components must be presented in ways that all users can perceive. This takes into consideration the effect of colour, size, typeface and sound.
- Operable: all users must be able to simply and accurately manipulate all interface and navigation components, taking in account how they operate their computers.
- Understandable: content and interfaces must be clear so that all people can understand a website. Consistency of interface elements, intuition in appearance and operation, and plain language are part of this principle.
- Robust: robust websites can be reliably interpreted by a wide variety of browsers, devices and assistive technologies.
Internalize accessibility design principles
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