That looks more like a L'Oreal HiP shadow than Cover Girl. Granted I tend not to use most drugstore lines now a days but I have several HiP that look like that. I don't recall Cover Girl ever having duos like that.
IF it's L'Oreal HiP it could be Bustling, Wicked, Michief, Shady or Shocked. It's hard to tell since the picture looks like it was taken indoors under incandescent light rather than natural light.