I purchased the blue color, which is more of a steel grey with a hint of blue. It's perfect for my bedroom, but if you are looking for a true blue, these curtains are not it. The material looks like a heavy silk duponi,  not as delicate or light, but a nice weight. Also, they do darken room the room considerably, though are not total blackout. 
Wrinkles from being folded in the package released easily when I put two panels at a time in the dryer with a damp towel on the wrinkle release setting (30 min).