For the Mainstays (Walmart) Blackout Curtains, the lightest color tested was ivory, and the darkest color tested was navy. These curtains are sold as pairs, and are made from polyester.

Walmart shoppers say that this blackout curtain set from Nicetown is "the best" in the game and are "impressed" with their "excellent" quality — especially considering they're on sale over 80% off.

Related: Walmart Has a ‘Cozy’ Thermal ... are loving the functionality of these curtains. One shopper wrote that they are "by far the best [blackout] curtains I have ever had." ...