It is primarily a tool for checking foreground & background colour combinations to determine if they provide good colour visibility. It also contains functionality to create simulations of certain visual conditions such as colour blindness.
Determining "colour visibility" is based on the Contrast Ratio algorithm, suggested by the World Wide Web Consortium (W3C):
Note:The contrast ratio is now a W3C recommendation (December 2008), to help determine whether or not the contrast between two colours can be read by people with colour blindness or other visual impairments.
Download:
English version: Updated Contrast Analyser 2.2a (ZIP, 663KB)
Korean version: New! Contrast Analyser 2.2 Korean version (zip 663 KB)
Hindi version: New! Contrast Analyser 2.2 Hindi version (zip 502 KB)
Chinese (traditional) version: Updated Contrast Analyser (Traditonal Chinese) version (zip, 367 kb)
Versione italiana: Updated Contrast Analyser - Versione 2.2
Version Franaise: Updated tlchargement version franaise (ZIP, 363KB)
Versin espaola: el Analizador de Color 2.2
Czech version Updated Analyzr kontrastu barev verze 2.2
deutsche Version: Updated Farbe Kontrast-Analysator 2.2
Kleur Contrast analysator 2.2 Nederlandse versie nu beschikbaar