Here are a few things off the top of my head that are currently existing signs of institutional racism.
The War on Drugs is still going on. Even after the fair sentencing act, there is still a big discrepancy in sentencing for crack and cocaine.
School districts drawn decades ago are still de facto segregated and funded in a way that disadvantages primarily minority school districts.
Since Shelby County v Holder every state subject to preclearance has taken action to restrict voting that disproportionately affect minority communities.