Violet or purple are the most luxurious and mysterious colors. How to use purple in different rooms. How to mix it with other colors? Bathrooms are probably the only rooms where any shade of purple and violet can be either used separately or mixed. Purple is not the color for boys, but girls love all shades of lilac. For a simpler interior in your living room, just mix warm shades of purple with a brownish tint of red and light pink.