Blue Rouge is a mixed blue and purple glitter, the usual sort of Lynnderella thing with multiple sizes of glitter. You can see that I got it very close to opaque with only a couple of coats, but when I've worn it I've worn something similar underneath it. (I mentioned a couple of days ago that Purple Haze might look good under it.) Lotus is also a blue-toned purple but obviously it's very different, it's both grayed-out and really full of various colors of shimmer, in red, pink and gold. Both of these are quite beautiful in their very different ways.