Some years ago I did a workshop with Ricky Timms! (Yes the REAL Ricky Timms!!) The first thing he did was give us all a piece of calico approx 18" x 6" and got us to flip and stitch strips of whatever came out of the bag. When complete we had to pin them on a design wall covered in black fabric. There were 18 of us in the class all working in totally different colours but those 18 blocks against the black looked stunning!! Ricky proved to us anything goes!!!!! Never had a hang up with colours since!!!!