My right hand turned purple 3 or 4 times over the past year, it normally lasted 3-4 hours. No tingling or pain, they felt perfectly normal. Today, my left hand has been really dark blue/purple for 8 hours and counting. It s warm outside and the hand is feeling great.. What could be the problem, if any? I ve always been healthy, always had near perfect blood pressure. I m a 52 yr old make, 6 4, 225lbs...