I am doing that exact pattern right now. I am using assorted blues (light & medium) for the center square and alternating white and beige for the corner squares. One block has white, the next block has beige. I was commissioned to to this and these are the colors she requested. So far, it is turning out pretty good, but I had to buy different beige. The first I used just didn't give enough contrast to the white. So, "unsewing" 45 blocks.. Now I think I am on track. Will post photos when done, but it will be a while... I am taking my time on this one as I am being paid well to do it.