The color of the wall other than black, gray, and white will look worse. It is not recommended by me to project on a white wall too, but other colors are not worth it at all. The color of the wall will mess with the color vibrancy of the projected image. I have used a projector both on white and pink walls. My room has a pink wall. Yes, I have. Men like this color too. There was a pinkish touch to the whole image of the projector on a pink wall. This is why it is not recommended to project images on a colored screen. However, if you want to project the image on the wall for some reason then you can go with white, gray, or black color. They will look okay.