Aristocratic Aura is described as a "dirty blue grey with silver pearl [with a Frost finish]." It's a muted, medium taupe with a hint of mauve and a pearly sheen. It had semi-sheer pigmentation, and the texture was really stiff to work with, which made it frustrating to apply. The color started to fade after seven and a half hours of wear. See comparison swatches / view dupes.
FURTHER READING: Formula Overview, which is a detailed review of the range as a whole.