Color is more of a warm tone gray than cool tone.  Relatively easy to put together! The hardest part was bringing the box inside because it’s really heavy (for reference, I’m 5’3”, 110lbs). But once you open it, all the individual pieces are not heavy. My sister and I put it together in about 2 hours. I recommend building it with two people, as it’s tricky for just one person to fit some of the parts. Definitely easier than many of the Ikea furniture I’ve built. When I was building it, I wondered if the bed would be too low. But once I put my mattress (about 12 inches) on it, it was the perfect medium-high height! Very pleased.