Guía
Conceptos básicos de ratio WCAG (sin tecnicismos)
Entiende qué significan los ratios de contraste y cómo usar AA/AAA en trabajo real de UI.
Los números de contraste pueden parecer abstractos al inicio. Aquí los traducimos a decisiones prácticas.
What a contrast ratio represents
It compares how different a text color is from its background.
Higher ratios generally mean easier reading.
AA and AAA in simple terms
AA is the common practical baseline for most web interfaces.
AAA is stricter and useful where maximum readability is needed.
Normal text vs large text
Large text can pass at lower ratios than normal body text.
Always classify text size correctly before deciding pass/fail.
How to apply this in a workflow
Check planned color pairs before development.
Retest final UI states after implementation.
When to read this
- Starting accessibility reviews.
- Training designers and developers.
- Creating color QA checklists.
Use ratios as a decision tool
You do not need to memorize every rule. Use a checker and know which threshold applies to your text size.