Accessibility · hard · v4.6.1
ACC-05
Use readable font sizes and sufficient contrast. Body text should be at least 16px.
Pass example
Body text at 16px with a contrast ratio of 4.5:1 or higher
Fail example
Body text at 11px in light gray on white background
Version history
v4.6.1 · 2026-04-23
Per-standard version tracking introduced. Every standard starts at the library version current at introduction; bump per-standard when the rule text, examples, or content_type_notes change.
Related standards
Other standards in the Accessibility category.
ACC-01— Write descriptive link text. Never use 'click here' or 'learn more' as standalone links.ACC-02— Don't rely on color alone to convey meaning. Pair color with text or icons.ACC-03— Write alt text that describes the function or content of an image, not just what it looks like.ACC-04— Avoid directional language that assumes visual layout. Don't say 'above,' 'below,' 'to the right.'ACC-06— Don't include preceding articles (a, an, the) inside linked text. Link only the meaningful words.ACC-07— Write clear, concise form labels. Only mark fields as required when they are truly necessary.