Who Can Use? lets you explore color combinations and how useable they are for people with different visual disabilities online. I love its simplicity, how it breaks down the category of “vision impairment” into the really rich array of needs and capacities that it actually corresponds to, and how it builds empathy instead of just spitting out a compliance report. I also love how it brings receipts. <3 <3 <3 whocanuse.com

A couple of related resources: