Quilters will need all of the colours. I especially like reds, purples, greens and yellows but you'll need the others too. I really find it difficult to find blacks (tone on tone) that read as black. Too many of them look gray, green or even bluish black. Decent lights are always harder to find than the darks or focus prints. A good selection of blenders (those mottly speckly ones) that I never knew a quilter would need until I started making quilts would also be a big plus.