O.P.I Lincoln Park After Dark is a cult classic dark purple O.P.I shade made famous by many female celebrities since 2009. Khloe Kardashian inspired me to start wearing it on my fingernails. I have been wearing it all Autumn and Winter this year. The thing I love about LPAD is that it is a dark purple, which is much more wearable than a flat black. LPAD has a sister, Lincoln Park At Midnight which is the same deep purple but it has very fine shimmer through it. Lincoln Park After Dark is much more of a flat matte purple.