Regression This was fixed (per the answer below0 and has broken again, on main and meta (August 2015). And then was fixed again and is now broken again (October 2015).
Our nice, soft, shades-of-brown site theme has just been invaded by the blue end of the spectrum:
Visited links are now blue where they used to be a lighter brown than the unvisited ones.
Firefox and Chrome on Mac OS 10.6, main and meta. Also happens in Chrome on my Android phone (in full rather than mobile view). I think this probably isn't local to me, though if it is I expect I'll hear about that. :-)
It also affects the "box" around user cards: