An accessibility testing suite

As I take on the role of a teacher, I am beginning to realise just how much of our documents aren't accessible. The university is pushing us to make everything accessible without a sensible pathway, but I'm going to try my best and make sure my students can access my documents without hindrance.

Currently I am trying to make my PDFs UA2 compatible using LaTeX. I also want to make sure my documents are colour blind friendly. A colour-blind simulator software would be great.

Is there like an "accessibility" suite one can self host to pass documents to check for various accessibility parameters?