I so want Blankety.
I have lots of nude/pinkish lippies (LOVE THEM), but since a lot of lipsticks have already been recommended ... What about Prr lipglass? That one's frosty, too, which you wanted. I LOVE it.
I have pretty pigmented lips naturally, so what I do is, I dab a teeny tiny little bit of foundation on my lips (this might be a no-no, but it works for me!) to mute down my own lipcolor, and then apply a little bit of chapstick/lip balm over that so it won't dry out my lips too badly, and then Prr lipglass on top
It's a perfect nude lip for me, and I've been wearing it a lot lately!