Nekorosu's reply is about how to simulate colorblindness (so you can test how accessible a design is), for which there are plenty of great tools. Recently, I've

Nekorosu's reply is about how to simulate colorblindness (so you can test how accessible a design is), for which there are plenty of great tools. Recently, I've liked http://colororacle.org/ http://colororacle.org/ Yet that's not really an answer for how to optimize for color blindness. That I don't know and would be interested in an answer.