I've stitched on Lambswool colored fabric before. Many designs have floss colors that are better suited for colors other than white. I've done a lot of stitching in the last twenty four years and have a variety of different colors of many types of cross stitch fabr4ics. I started out on light blue aida for a marty Bell design. Then I graduated to linen and Jobelan and lugana. Happy stitching.