This phrase is commonly used in the context of interior design, fashion, and graphic design to describe color combinations that are aesthetically pleasing when black and white are mixed. It suggests that there are specific color schemes that, when combined with black and white, create a visually appealing and harmonious look. In interior design, this might refer to color palettes that are balanced and complement the neutral tones of black and white. In fashion, it could imply a style that pairs black and white in a way that is both stylish and attractive. In graphic design, it might refer to typography and color choices that enhance the overall design when black and white elements are used.