You might try searching through the plant data base at the link in the upper left corner. Search lilies A-Z. I don't recognize what the cultivar it is. It might be 'Tinos' because under certain weather conditions Tinos can change colors to look somewhat similar--but I'm guessing here. You could ask wherever or whoever you bought it from; they may be able to help you also.
Here's another reference site that list some of the latest production names that might be helpful as well.