The eyeliner I have is a deep navy blue and applies perfectly. I usually apply a thin line and adjust the thickness after… smudging needs to be done shortly after application if that’s what you want as this product sets and then stays put. You will need a double cleanse with a makeup remover soaked on a pad and then a q-tip to get it off efficiently but this is not a biggie as your look is guaranteed to be fresh and lasting all day.