Initializing, please wait a moment
Color Contrast Checker (WCAG) Paso A Paso
Color Contrast Checker (WCAG) funciona en tres pasos: abrir, elegir colores, leer la ratio y los veredictos.
Paso 1 - abrir la herramienta
Ve a Color Contrast Checker (WCAG). No necesitas instalar nada ni iniciar sesion.
Paso 2 - elige primer plano y fondo
Elige el color del texto y el del fondo con las cajas, o escribe HEX. Usa Swap colors para invertir. La vista previa muestra texto normal y grande en esos colores.
Paso 3 - lee ratio y veredictos
La ratio se actualiza al cambiar colores. Las insignias AA y AAA muestran PASS o FAIL para texto normal y grande. Cerrar la pestana descarta las elecciones - no se sube nada.
Quieres comparar con apps de escritorio? Ve vs alternativas.
Why trust these tools
- Ten-plus years of web tooling. The freetoolonline editorial team has shipped browser-based utilities since 2015. The goal has never changed: get you to a working output fast, without an install.
- No install, no sign-up. Open a tool and get a working output in seconds - nothing to download and no account to create. Tools that need heavy processing run it on our service, so even a low-powered machine gets the job done.
- Analytics stops at the page view. We measure which pages get visited, not what you type or upload inside a tool. There is nothing to sign in to and no profile is attached to your input.
- Open-source core components. The processing engines underneath (libheif, libde265, pdf-lib, terser, clean-css, ffmpeg.wasm, and others) are public and audit-able. We link to each one in its tool page's footer.
- Free, with or without ads. All tools are fully functional without sign-up. The Disable Ads button in the header is always available if you need a distraction-free run.