Have you checked out the new beauty try-on tool over at bloomingdales.com? It’s a tool that lets you see what certain beauty products look like on different skin tones. I was surprised to see this on the website, but I must say I am quite the sucker for these things. Here is a screen shot:
I went through a bunch of different lip products and found that you can view lipsticks, lip glosses, and lip tints. I didn’t see any lip liners available through this tool. You can also try eyeshadows and nail polishes.
As far as accuracy, I think they are computer generated for color and won’t take the place of a real swatch. Here is a screenshot of a Nars single eyeshadow in Bavaria with the models:
This looks like it will be a great reference and I am hoping more websites implement something like this.