Your holiday weekend Blankapalooza color prompt is
THE COLORS OF YOUR STATE FLAG.
For an awful lot of us, in fact, for most of us, that's going to be red, white, and/or blue. Take Tennessee here:
However, if you live in (or were born in --- your choice)
Washington (Hi, Twinnie!)
you've got all kinds of room to play!
Enjoy your 4th, and stay cool and safe.