I've been making them blue manually for awhile, I take it you made a global change to phpBB? My question would be what's a good contrast color for the color blind? (If there is a single answer to that question, which I'd guess is unlikely)
I googled about, but the references for checking for colorblindness, don't seem to work with phpBB. Or perhaps it's user error. At any rate, it seems there are at least 3 main types of colorblindness.http://www.allwebdesignresources.com/we ... olorblind/http://www.vischeck.com/vischeck/vischeckURL.php
Thoughtful inquiry there... I'm interested in accessibility optimizations in general too, but considering that we're hard pressed even to maintain content, and we operate on a part-time volunteer basis, it's something that wil likely remain low on the totem pole for a while and we'll have to trust that those with considerable diffictulties will have found some general solutions for themselves already, i.e., custom css files for their browsers.