A:Answer 16 million colors. It does have some back light bleed, but its not as bad as some monitors I've personally seen; it's not perfect by any means though. The gamma and grey levels are fine but nothing "truly outstanding." I wish it was a 10 bit or 1 billion color accurate monitor too. Considering I won't be able to upgrade this thing much. Really glad it came with a GTX 1050Ti and a thunderport 3 so possibly, can use an eGPU thing they sell on hps website and buy a better GPU hopefully, it will help keep the GPU aspect more updated. I wish hp, dell, acer what have you, would next time consider adding not only a better 10 bit type monitor. But ensure they add something more like a GTX 1080 or Vega 64 AMD GPU since we can not upgrade these things. ( I mean equivalent lets say next GTX line is called 1180 or 2280 in 2 years from now. Stay ahead... ) Would be a 100% sale from me. And obvious cooling is extremely important, when you start to go the quality GPU route. Hopefully. In three or four years. I can look forward to a real leap in performance, monitor quality wise and GPU power wise. No other complaints. Just thought I'd share. 1700 buckaroos is a lot. I've never spent so much on a PC. I just regret the weaker GPU is came with. Here's hope not just hp but everyone will consider this. I can't guarantee anything sale wise but it's what I would do, as all-in-ones are not laptops and are not upgradeable like true desktops after all. Overall 8/10 purchase.