Which contrast ratio do I need to pass WCAG AA?
Normal text requires a 4.5:1 ratio; large text (18pt+ or 14pt bold) requires 3:1. The WCAG Color Contrast checker shows both thresholds and your pass/fail status instantly.
Colección
Design & Color Tools
Check color contrast ratios for WCAG compliance, simulate color blindness, and calculate aspect ratios — free design helpers that run entirely in your browser.
3 herramientas en esta categoría
← InicioPor qué existe esta colección
Accessible and well-proportioned visuals start with the right numbers. This collection groups the TeaFun tools that designers, developers, and content creators use to check color accessibility, simulate vision conditions, and lock in correct proportions.
Casos de uso comunes
- Verify foreground and background color combinations meet WCAG AA and AAA contrast standards.
- Preview how your palette looks to users with protanopia, deuteranopia, or other color vision differences.
- Calculate and lock in the correct aspect ratio when cropping images or sizing video embeds.
Herramientas destacadas
Paleta de Colores + Verificador WCAG
Revisa relaciones de contraste, cumplimiento AA/AAA, genera variantes de paleta y exporta tokens de color CSS o Tailwind v4 localmente.
Prueba de daltonismo
Pon a prueba tu visión cromática con las láminas al estilo Ishihara optimizadas para gamers.
Calculadora de Proporcion
Calcula proporciones de imagen al instante. Convierte dimensiones, resuelve lados faltantes y consulta tamanos de imagenes para redes sociales 2025/2026.
Preguntas frecuentes
How does the color blindness simulator work?
It applies standard daltonisation matrices to the input colors to approximate how they appear with different types of color vision deficiency — all computed locally in your browser.