Years ago we observed a colleague of ours (who now runs a successful streetwear company) going over some designs for graphic T-shirts. When we asked him why he kept repeatedly asking a co-worker about simple colors in the patterns, he revealed he was colorblind. Amazingly enough it hasn't hampered his design skills, as in the ten years since then he has turned his fledgling company into a $1-million-plus multinational.
Since then we've been fascinated by the thought that a designer working in graphics could be colorblind, and now Paul Martin has put up a blog entry to show his curious designer buddies how colorblind folks see things. Check it out here.