Contraste

Contraste is a macOS‑only utility that evaluates the contrast between foreground and background colors used in text. By applying the contrast ratio thresholds defined by the Web Content Accessibility Guidelines, it determines whether a given color pairing meets the standards set by the W3C for visual accessibility. The app presents the result quickly, indicating if the combination is suitable for users with visual impairments.

The tool is aimed at designers, developers, and anyone who creates textual content on macOS and needs to verify that their color choices comply with WCAG requirements. It runs on macOS High Sierra (10.13) or newer and is distributed as a free download. Its focus is on providing a straightforward, on‑device method for checking color contrast without requiring external services or complex workflows.