Interactive Tools

Free Vision Impairment Simulators

• Dalton Lens. The most researched and accurate color-blind simulator (external link). Provides the ability to grab any screen region, and test 3 types of color-blindeness along a sliding severity scale. Users acan easily save simulation files directly from the app which runs natively on MAC and PC.

• Color Oracle Simulator. A native app for MAC and PC that simulates colorblindness for anything currently showing on a display (external link). It's simulation capabilitiies are very close to Dalton lens' and is useful for quick checks.

• Chromatic Vision Simulator: Mobile App that uses your phone's camera to see the world with color-blindness (external link).

• TPGI Contrast Checker. A native app for MAC and PC. Designers can color-pick any 2 areas of their computer display and receive a contrast ratio for both the color-typical and color-blind (external link). 

• Colour Contrast Analyzer by NC State University. This Color contrast mapping Chrome extension (external link), by NC State University, allows designers to see a visual map of any website laid over all of the text and images. Various WCAG AA and AAA standards can be mapped.

Interfacing with your users

Affective usability assessment starts before and runs all the way through the development process.

• Interviewing Users

• User Testing (external link)

• User Test Reporting: example (external link)