Checking for colour blind accessibility



I am looking for a tool that I can run an image/website through and it will tell me if it is accessible for colour blind users. I have used VisCheck in the past but this does not appear to be working any more.

Thanks in advance


Maybe the Chrome plugin Alessia found will be useful for you too?


Recommended by Chris Coyier


This one looks great thank you!

Unfortunately, this one is being blocked by our internal web policy so I am waiting on it being unblocked!