Almost like full color but then covered by a filter that washes out. i can discern greens, yellows, even blues. But its more muted. Last time I had a vibrant color dream I was riding a bike on ramps in space or something. Black starry background and hopping up/down brightly lit ramps. Light fixtures are uncommon in my dreams, things are just lit or not. Also uncommon.. mirrors, glass, screens, reflective surfaces of any kind.