How does WCAG 2.0 suggest improving readability for all types of visitors?

Improving readability for all types of visitors is a fundamental aspect of web accessibility as outlined by the Web Content Accessibility Guidelines (WCAG) 2.0. Ensuring appropriate contrast ratios is essential because it directly affects the visibility and legibility of text.

A well-chosen contrast ratio between text and background colors enables individuals with visual impairments, such as color blindness or low vision, to read content more easily. This guideline is especially critical for ensuring that the text stands out against its background, making it less strenuous for all users to consume website information.

While other options like using descriptive font sizes, limiting text amount on pages, and utilizing text resizing options contribute to overall readability, it is the contrast ratio that serves as a foundational principle in making content accessible for a broader audience. Without sufficient contrast, even well-structured text can become unreadable, undermining the effectiveness of any other design choices made to improve readability.