The combination of cool tones

Quick answer：

The combination of cool tones refers to the pairing of colors that are associated with coolness, such as blues, greens, and purples. In design, fashion, and interior decoration, cool tones are often used to create a sense of calm, serenity, and elegance. They are often contrasted with warm tones to create a balanced look. The proper combination of cool tones can evoke different emotions and atmospheres, depending on the context.