I buy my bikes used so don't get much of a choice of bike color (especially since I need a larger frame and they're not that common). I would much prefer a red or yellow bike, but 2 of the bikes I've ridden in the last few years were green. Green? Who buys a brand-new green bike? It's like buying a green car.
My last bike was black, so I just accessorized with red. And my latest is a Giant Escape in blue - my wife encouraged me to add green but I went back to red pedals and red tape.