Aurifil’s 50wt cotton thread is a very versatile and popular thread. It is available in all 270 Aurifil colours, and is wound on an orange spool. The 50wt is strong and thin, and results in remarkably flat and crisp seams. While it is wonderful for piecing, subtle quilting & topstitching, and English Paper Piecing it also works incredibly well for Needle Turn Applique, Bobbin and Machine Lace, Machine Applique (Straight Stitch, ZigZag, Blind Hem and Blanket Stitch,) Machine Embroidery, Dense Machine Quilting, Subtle Machine and Longarm Quilting, Basting, Whole Cloth and Micro Quilting, and Dense Background Designs.
I absolutely love sewing with these threads, they are silky smooth and very high quality. 
100% Egyptian Cotton 2ply
Due to various factors it is almost impossible to represent plain colours exactly.
Use the images only as a guide