From Jim Meyers at Oregon State. "Blue" from the anthrocyan when the sun hits the fruit. This is the variety used in all the breeding of these new varieties. Flavor is not very good but several generations down, the new varieties are doing quite well with flavor. The pics are all from the PL version we found. Fruit from the PL seems to be more beefsteak and RL more salad sized.

More at Tomatobase   http://tatianastomatobase.com/wiki/OSU_Blue