Jennie Nunn I'm not sure of this exact source, but salvage shops and flea markets (even ebay.com) are great places to look for wrought iron remnant pieces.
Anne DeCocco This is one of those really tricky colors--blue, green, gray and lighting, all coming together. Start by looking at Ben Moore's Bridal Bouquet/632 or Sherwin's Haze/6471.
Between Naps on the Porch I looked online...could not find this exact bed. If you google Wrought Iron Beds, there are a lot of sites with similar ornate wrought iron beds. So sorry I wasn't able to find this exact one. It is beautiful.
It's more common for people to have blue walls than black walls. That way, you can add cool black designs to the area to bring out the blue shade. Here we've got an intricate black headboard pressed up against the wall, letting the blue peek through. Black frames with an open design like this would have the same effect.