According to psychological feelings, colors are divided into warm colors (red and orange), cool colors (green and blue) and neutral colors (purple, yellow, black, gray and white). In painting and design, warm colors give people a sense of intimacy and warmth; Cool colors give people a sense of distance and coolness. Complex colors depend on their specific composition and appearance.

In addition, people's perception of color is strongly influenced by light and adjacent colors. The cold and warm feeling of color is formed by association in people's long-term life practice. Red and orange are often associated with red flames, so they have a warm feeling, so they are called "warm colors"; Green and blue often remind people of green forests and blue ice and snow, so they feel cold.

Common cold and warm colors: red (warm color), orange (warm color) and yellow (warm color); Green (cool tone) and blue (cool tone)

Extended information: the application of cold and warm colors: in commercial design, the image of freshness, ideal, hope and growth conveyed by green meets the demands of service industry and health care industry. In order to avoid eye fatigue when operating in factories, many working machines also use green, and in general medical institutions, space color planning often uses green, that is, marking medical supplies.

Purple is the shortest visible light wave. Purple is an imperceptible color. It is beautiful and mysterious, giving a deep impression. It is both threatening and inspiring. Purple is a color that symbolizes piety. When light and understanding illuminate the pious color of ignorance, the beautiful and lovely aura will make people ecstatic!

Baidu encyclopedia-cold and warm colors