Do white blackout curtains work?
Yes; white blackout curtains are just as effective as dark blackout curtains at blocking out light. The key factor in a blackout curtain’s ability to block out light is the type of fabric it is made from, rather than the color.
What color curtain makes a room look bigger?
Since bright colors are more reflective, the room looks airier and more open because it contains more natural light. Dark colors do just the opposite because they absorb light and make a space look smaller.