MAC Forever Marilyn Beauty Powder ($28.00 for 0.35 oz.) is described as a "sheer pale peach highlighter." It's a very light pink-tinged peach. In the pan, it looked rather peachy, but when swatched on my arm as well as applied to my cheek, it looked a bit pink. MAC Play It proper is similar but pinker in the pan. MAC Lightscapade is lighter, yellowy. MAC Light Sunshine is more shimmery. The color is as described; it's sheer, though somewhat buildable.
I find myself never using this and wish I had passed on it. I can't imagine a complexion this color would flatter. It just makes me look paler than my normal pale but in a whitish peachy way rather than a whitish pinky way.