These slippers seem well-made, but the sizing is too limited. You would be best ordering your normal size. If you're a 6.5, the 5-6 would be too small and I am betting that the 6-7 would be too large, but I'm not sure.
The color is pretty accurate, a pretty dark  heather plum color.
The 5-6 was way too small for a size 6 foot.