Contraste

It measures text/background luminance ratio for readability accessibility. Place your content in the input area above, tweak options if needed, then copy the result into your editor, terminal, or documents. LocalKit processes everything locally in your browser—nothing is uploaded and no account is required. On a shared computer, close the tab afterward and be careful with sensitive clipboard data.

AAA is stricter. Aim at least AA for body text. Place your content in the input area above, tweak options if needed, then copy the result into your editor, terminal, or documents. LocalKit processes everything locally in your browser—nothing is uploaded and no account is required. On a shared computer, close the tab afterward and be careful with sensitive clipboard data.

Yes. Colors are evaluated in your browser. Place your content in the input area above, tweak options if needed, then copy the result into your editor, terminal, or documents. LocalKit processes everything locally in your browser—nothing is uploaded and no account is required. On a shared computer, close the tab afterward and be careful with sensitive clipboard data.

Large/bold text often has a lower required ratio than body text. Place your content in the input area above, tweak options if needed, then copy the result into your editor, terminal, or documents. LocalKit processes everything locally in your browser—nothing is uploaded and no account is required. On a shared computer, close the tab afterward and be careful with sensitive clipboard data.

Contrast is necessary but not sufficient—also consider focus, size, and semantics. Place your content in the input area above, tweak options if needed, then copy the result into your editor, terminal, or documents. LocalKit processes everything locally in your browser—nothing is uploaded and no account is required. On a shared computer, close the tab afterward and be careful with sensitive clipboard data.