Yep, totally: I've been trying to write a good essay about being colorblind for years and just can't get the right angle. I think it, along with being left-handed (which I also am), is one of the last acceptable targets of open prejudice left in the world. Acceptable as in it's still OK to ask debile personal questions and make dumb jokes when one finds out that ones interlocutor is 'afflicted' with said condition.
Hey, I just noticed we were born two days apart. Good vintage, September '72.