100% en el navegador y privado

Web Color Contrast Checker (WCAG 2.1 AA & AAA Conformance)

Client-Side Sandbox
100% In-Browser Privacy All computations and file processing run strictly in your browser. Zero server data uploads.

Test text and background color combinations against W3C WCAG accessibility standards for normal text, large text, and UI components.

WCAG 2.1 AA & AAA Contrast Conformance

Test text and background color combinations against W3C WCAG accessibility standards for normal text, large text, and user interface components.

Large Headline Preview (18pt+)
This is sample body text (14pt-16pt) to evaluate visual readability and legibility against the chosen background color.
Contrast Ratio 16.1 : 1
WCAG AA Normal (4.5:1) PASS
WCAG AAA Normal (7.0:1) PASS
WCAG AA Large / UI (3.0:1) PASS
Estándares verificados
Resultados precisos y deterministas Probado según especificaciones oficiales para obtener resultados reproducibles y fiables.

Cómo usar esta herramienta

  1. Paste your code, payload, schema, or query into the source editor.
  2. Choose indentation spacing (2 or 4 spaces), formatting flags, or conversion mode.
  3. Inspect syntax validation or decoded output in real time, then click Copy Code or Download.

Formatos admitidos, límites y privacidad

Entradas y límites: Browser client-side processing limits apply (e.g. max recommended image size 25MB).

Cero recopilación de datos: Esta herramienta se ejecuta al 100% dentro del motor JavaScript del navegador del cliente. Ninguna pulsación de teclas, valores, archivos o resultados calculados se almacenan o transmiten a ningún servidor remoto.

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