Frogs see red and blue lighting but these colors usually are subdued and more similar to a moonlight that they are not threatening. You will find with some frogs, I find this especially with RETFs, that the frog will retreat and become inactive when any color lighting is added.

My WTFs loved the red 15 watt night bulb and would pile on each other to get the best spot under it, but rarely whet near the blue moonlight lamp or the blacklight bulbs.