What is a key principle of accessibility?

A key principle of accessibility is perceivability, which emphasizes the importance that information and user interface components must be presented in a way that users can notice and understand. This principle ensures that all users, including those with disabilities, can access and comprehend the content being provided. For instance, text needs to be legible, colors should have sufficient contrast, and multimedia content should include alternative formats such as captions or audio descriptions, allowing users with various sensory impairments to perceive the information.

This principle aligns with the core concepts of accessible design, ensuring that communication is effective and inclusive, thereby enabling all users to engage with the material equally. By focusing on how information is perceived rather than just the medium through which it is communicated, perceivability helps designers create environments where everyone can participate fully.