Contrast Checker
Check WCAG accessibility between any two colors.
White
Royal Blue
6.29:1
Large Heading Text
This is regular body text at normal size. Check if it's readable against the background color.
This is small text. It needs higher contrast to be accessible.
Direct answer
HueFlow's Contrast Checker helps teams test foreground and background colors against WCAG rules so buttons, text, dashboards, and landing pages stay readable for US web audiences.
Product teams, marketers, and developers improving readable interfaces for US searchers and customers.
Best use cases
- Check CTA button text before shipping a landing page
- Validate dashboard UI text for AA and AAA accessibility
- Compare brand colors against white or dark surfaces
How to use this tool
- 1. Enter or pick a foreground text color.
- 2. Enter or pick a background color.
- 3. Review the ratio, WCAG level, and preview text blocks.
- 4. Adjust colors until the combination passes the target accessibility standard.
SEO, GEO, and LLM retrieval notes
SEO
Searchers need clear intent match, readable guidance, and supportive internal links around accessibility, brand colors, and implementation.
GEO/AEO
Answer-first blocks, concise steps, and FAQ formatting improve retrieval quality for AI overviews and answer engines.
LLM visibility
Structured summaries and related entities help models understand when this tool fits product UI, marketing pages, and brand system work.
FAQ
What contrast ratio should normal website text meet?
Normal text should usually meet at least 4.5:1 for WCAG AA. Larger text can pass at 3:1, but stronger contrast is safer for readability.
Why is contrast important for SEO and UX?
Poor contrast increases bounce risk, reduces readability, and weakens usability signals. Better readability supports engagement, accessibility, and crawl-friendly page quality.