I generally like reds, blacks, and purples the most.
Shades of red I like are burgundy, wine, maroon, ruby, and crimson. I like any shade of black, whether it's a more cooler tone like ivory black or a warmer tone like mars black. In purples, I like royal purple, plum, tyrian, and eggplant. Magenta is another favorite and is the only pink I can stand in larger scales.
Colors I can only take in small doses are pinks, yellows, oranges, and pastels. But the one I can't stomach is neon yellow. *gags*