This is one deep purple by De Atramentis. It’s so dark that at times you can even fool yourself that it is black especially with wetter nibs. De Atramentis Aubergine goes down dark but dries to a greyish-purple. It shade subtly and I think it would make for an excellent alternative to regular corporate black inks. This is an interesting colour by De Atramentis, I’m tempted to get a full bottle for myself.