Guía
Cómo corregir texto con bajo contraste en un sitio web
Sigue un proceso práctico para detectar y corregir texto con bajo contraste rápidamente.
Si los usuarios dicen que el texto cuesta leer, normalmente puedes corregirlo sin rediseñar todo el sitio. Esta guía te da un flujo claro y rápido.
Audit the worst readability problems first
Start with body text, form labels, buttons, and links on high-traffic pages.
Collect failing pairs in a short list so your fixes stay focused.
- Homepage hero text
- Primary/secondary buttons
- Form helper and error text
Measure each text/background pair
Run each pair in a contrast checker and note failed AA/AAA targets.
Keep one table with current value, target, and proposed fix.
Adjust color without breaking brand style
Change lightness first before changing hue.
Small shifts can improve readability while keeping your visual identity recognizable.
Retest UI states and responsive layouts
Check hover, focus, disabled, and visited states.
Confirm results on mobile where smaller text magnifies contrast problems.
Ship and document new color tokens
After fixes pass, update your design system tokens and component docs.
This prevents the same low-contrast values from returning later.
When this guide helps
- Fixing readability complaints from users.
- Improving old pages before relaunch.
- Cleaning up inconsistent legacy color styles.
Fix contrast in controlled iterations
Work through the highest-impact text first, test each change, and lock improved values into your design tokens.