I ordered 4 of these in taupe, and the color is as pictured. It blocks a good deal of light, but not all (as expected). It is not thick like thermal curtains (no vinyl backing). Note that the back of the curtain is dark brown, which helps with the darkening but may absorb heat from direct sunlight.
looks nothing like the picture. very sheer. does not block out lighting at all.
i bought Colormate Jillian Room Darkening Curtain Panel and they were great. they were the perfect size and color, doesnt bring in any light when fully closed and very durable