FrontendHaltAccessibility·Beginner·Conceptual·1 min read
What are the WCAG AA contrast ratio requirements?
Short interview answer
At least 4.5:1 for normal text, and at least 3:1 for large text, defined as roughly 24px regular or 19px bold or larger, and for meaningful non-text UI components such as icons and input borders that convey information.
Key takeaway
Explain the underlying mental model clearly, then support it with a concrete example and its trade-offs.