Ultraviolet is described as a “bright blue-violet shimmer.” It’s a vibrant, bluish-purple (almost royal blue but not quite) with a pearly sheen. In a single stroke, it was so-so in color, and it was somewhat buildable but takes three to four layers to get an opaque line. The consistency was slightly waxier than others in the formula. It wore without smudging or migrating for eight hours. This shade is new and exclusive to the set. Marc Jacobs Th(ink) is darker, more muted. See comparison swatches.