Blush\contour\highlight colors

Question to all those that know how to do makeup well: if my foundaton shade is Nars Sheer Glow Santa Fe (is what the Sephora makeup lady said it should be), what shade of blush is right for me? With contour and highlight, the shades should be 2 or 3 shades darker (contour)or lighter (highlight) is what I read. What shades would those be for my skin color and foundation?

Please let me know. Thanks.