Sports Classic: Oakland A's cap

There are people who think these colors don't look good together.  To me, they look perfect together.  Forest green and yellow; it's classic.  The official A's cap (currently made by New Era) is one of my favorite team caps, if not my favorite.  If I lived on the west coast, and if I could bring myself to root for an American League team, I'd be an A's fan.  Those are two very big ifs, however...