Check
Compare routes and markers across three simulated colour vision modes.
Introducing CueLock
Can everyone read your map?
Colour alone can make a route, hazard, or destination hard to recognise. Import your GeoJSON or draw cues on a real street map, check them under simulated colour vision differences, and improve them with pattern, shape, and labels.
How it works
A practical check for map designers.
Improve
Apply distinct line patterns, marker shapes, and labels to the demo.
Share
Export a testing report with results, cue states, and the method used.
CueLock is a research tool for evaluating visual map cues. It is not a journey planner or a WCAG certification.