UX/UI Design: Foundations to Practice · Accessibility and Inclusive Design
Designing for Screen Readers and Keyboard Navigation
Two of the most common assistive technologies, screen readers and keyboard-only navigation, require specific, deliberate design and structural choices that a purely visual design process, evaluated only by looking at a screen, will not automatically produce.
A screen reader converts an interface into synthesized speech or braille output by reading the underlying structural and semantic information in an interface, not by interpreting its actual visual appearance directly, which means a design that looks perfectly clear and well-organized visually can still be genuinely confusing or entirely unusable through a screen reader if the underlying structure lacks the semantic information a screen reader actually depends on, such as a properly labeled heading structure or a genuinely descriptive label attached to an interactive element.
- A screen reader depends on underlying semantic structure, not visual appearance, meaning a visually clear design can still be entirely unusable through a screen reader without proper labeling.
- Alternative text should convey an image's actual meaning or function in context; purely decorative images should be marked as decorative so a screen reader can skip them.
- Every interactive element needs to be fully reachable and operable through keyboard input alone, a requirement a mouse-or-touch-only tested design process can easily overlook.
- Removing default focus indicators for a cleaner visual appearance directly breaks usability for keyboard-dependent users, who need a visible indicator of their current position.