Color Club Revvvolution. Black with slight linear holographic. I've learned this is the dud version and the least holographic of them all which totally bums me out since I bought this back in 2009! Back before this was supposed to be an issue? *sigh* At least I'll always have my OPI My Private Jet to layer over black. You can see Scrangie's picture here. Look at how holo hers is! Needless to say I am disappointed.