Every single bulb will promote algae growth if left on long enough. If you don't want algae in a non planted tank only leave the lights on for short periods of time, like 2-3 hrs at a time.
For color enhancement it depend on the color of your fish. Full spectrum daylights (6,500k) will provide a good overall improvement over most standard fluorescents. GE makes a 9,235k bulb that really brings out the red in fishes while bulbs with a kelvin rating of 10,000k or above brings out the blues much more.