Get a blow dryer (not a heat gun) and put it on its highest setting. Heat up the paint over a long period of time by trying to get it to become elastic, as it is acrylic and is a type of plastic paint. See if you can very slowly and carefully peel it from your leather without anything but trying to lift it up with your fingernails. If that doesn't work, possibly a gentle organic chemical type paint remover dabbed on very carefully and sparingly by working it in to the paint and gingerly try to dab up with a soft absorbent paper towel. You could ask an car interior cleaner for their professional opinion, they might have just the right procedure.
Hope this helped.