Set to Dance is a deep purple-tinted burgundy-brown. It has a matte finish and is a repromote. I have no idea how it’s described as a “royal blue,” because I couldn’t detect any blue in it at all. It had good color payoff and was rather workable for a matte finish by MAC. MAC Celestial Black is similar in base color but has shimmer. MAC Beauty Marked is redder and warmer.