I have six bags -- one British Tan (caramel color), one black, one cherry red, one light green, one etoupe and one pink ... so two of them are colorful. Really three if you count the bright red, although it's considered a neutral color.
I have an orange-red Longchamp bag with croc detail, 2 red or geranium bags from Anne Klein and Fossil and 3 green bags (Dooney, Coach and no name) and I love the pops of color. I just think that if you wear colorful bags, most likely you will get compliments in a world of black and blue bags.
I love colorful bags! They can completely liven up a basic outfit. For summer, I love my hot pink Coach Carryall and it actually goes with more outfits than you would think!