This for the most part is a personal chose; However there are simple things you can do to choose a color/pattern that will actually work. If you like the hot pink wallpaper background and the rest of your house is done in marble I would recommend shying away from your personal preference and going with something that is going to last and add value to your home not take away from it. There are several guides that can help you pick colors that match it's surroundings and that fit in. A simple rule is choose like color's and tones. For example if your thinking green, and the opposite wall is maroon. Choose a green that is the same tone as the maroon. Don't pick like glossy shiny green, when the maroon is a dull light shade.
