I agree with QuiltnNan. I look at my stash & I have lots of cool colors, earth tones & for some reason reds. No yellow, orange or pink or purple. So my quilts (and scraps) sort of are within a few color groupings. Folks, however, do give me scraps, which round out the color wheel. I personally like controlled scrappies where one or two fabrics are repeated in each block. Also, when I make a scrap quilt, I do lay out and arrange the blocks. Blocks that stick out color-wise are dealt with in 2 ways. I either remove the blocks or make additional blocks with the 'offending' color/fabric and sprinkle more of them thru out the quilt to distribute the color.