We are crazy about Chanel’s “Mysterious” nail polish, ($27) a new color for Fall 2013. This is such a unique color. It’s a dark olive, not-quite-black color. Chanel describes the color as “deep khaki,” but we’re not sure that description does this color justice. It’s definitely a dark, mossy olive with beige undertones, but we can also see hints of deep purple. This Chanel nail polish is amazingly pigmented: just two coats gets the job done. “Mysterious” is absolutely perfect for the upcoming autumnal weather.