Some schools use other colors with their regular colors. My grandchildren's school colors are red and white but many of their items use either black or gray with the red and white. For the older one's graduation quilt, I made a "controlled scrappy" with reds, whites, and grays/blacks. The red and white theme still comes across but the blacks and grays give it interest and character. His sister is a senior and the quilt is still not begun. She wants to use her tee shirts from all of her activities, so this one may have to wait until after graduation. BTW, their college of choice uses the same colors.