Accent color walls are not necessarily outdated. The concept of using an accent wall, a single wall that's a different color from the others in a room, is a design technique that has been popular for many years. It's a way to infuse color and personality into a space without overwhelming it. The key to keeping this look fresh and modern is to choose the right color and wall for your accent. The color should complement the rest of the room's decor, and the wall you choose should ideally be one without doors or windows, so the color can shine without interruption. Additionally, contemporary design trends are leaning towards using texture or patterns, such as wallpaper or wood paneling, to create an accent wall, which can add depth and interest to a room. So, while the traditional idea of an accent wall may have evolved, the concept is still very much in style.