MK Signature Eyeliner in Indigo is your basic denim/navy (not the color indigo, btdubs.) It's retractable. Unlike PF eyeliners and a few other eyeliners of this ilk, this does not have a mini-sharpener in the cap, so once the liner dulls, it's going to be, well, dull. It's a pretty navy, but nothing remarkable and it skips a bit. I honestly don't see a reason to buy MK eyeliner for ten dollars when you could get several Prestige or Jordana eyeliners, which are better quality, for the same price.