With Helen Mirren, it's all about nuances. Here she matches her nails to her dress, but in a way that says "pulled together" instead of "matchy-matchy." Her secret? The color is in the same family as her dress, but it's a lighter shade, a small but important distinction. Also the sheerness keeps it from being to heavy. If you're all about the subtle details, like Helen, then Essie Sheers are your nails' best friends.