There are no colors that repel bugs. The yellow or orange ones sold as "bug bulbs" simply do not attract them as much as regular clear bulbs. The bug zapper bulbs attract them the idea being to get them to cross the charged wires and get electrocuted. Citronella candles/oil torches do repel bugs, they don't like the smell...unfortunately you might not like it either.
I use a yellow bulb in my back yard where my dogs stay on the deck. It only attracts a few moths but not very many at all. I used to have a regular bulb there and my deck, the wall around the light and the fixture itself always had thousands of moths, junebugs and whatever else was flying around out there in the acreage around it. They aren't as bright but they work well. I have had trouble finding energy efficient bulbs in yellow though.