Cobalt Blue. Color Is Pics Is Slightly Off Due To Lighting But They Are A True Cobalt Blue. I Tried Them On In The Store And Then Wore Them In My House For A Brief Amount Of Time And Then Lost One Of Them. Just Found The Slipper I Lost But I Had Already Replaced Them. There Is A Piece Of Fabric Between The Big Toe And The Toe Next To It Like A Flip Flop.