If you are a person focusing on health and like to try all kinds of new apps, then you might have tried some with the subjects of visual acuity or color blindness test. But the fact is they don't like look so professional and practical - most of which are just funny games (e.g.: Eyesight Examiner Side N and THE EYE TEST).

Colour Contrast Analyser's main purpose is to detect foreground and background colors at the same time to see their matched-degree, make sure if they provide a good color visibility. It's especially suitable for web and graphic designers.