The variegated yarns in these squares is Red Hearts TLC Essentials. I used three colors: sedona, coraline, and island. Fore those wanting to doe something similar to this I can give you my formula. I kept the center of the large squares the same, blue. Each square has white, and sedona in it. If you keep the white and the red in the large squares you can change out the other yarns. You can see I used some yellows and a pretty mint green.