Last winter we had a power outage that lasted a few days.
the first night it was almost pitch black dark.
Out of boredom I tossed my 5 year old German Shepherd one of his Costco mini burger treats, which he caught with no trouble.
I could barely see where he was in the dark, and damn sure couldn't see the little dark brown treats mid-air. He finished a quarter of the bag catching them out of the air one at a time. Probably about 40 catches, no misses.
Colorvision aside, Dogs can see in the dark pretty damn good. Not sure about their daylight vision.