Jaci my last tip I sent into Marcus Bros netted me a neat FQ packet of 5 beautiful fabrics was concerning this exact subject. I found one day while I was looking at some paint samples on the little cards that they are all color matched. They are also in a set of 4 colors that blend perfectly. If you want a purple quilt you simply go and pick out a card with purples on it. Take the card over to the fabric dept and choose a fabric to match each of the colors on the card. If you want more than 4 colors just get the next card in the line and it will match too. I have used this many times and the colors are already there on the card & best of all the cards are free!!
crafty_linda_b sittin' & quiltin' on the Cal-Ore border