Children's play spaces are crucial for their physical and mental development. The color design in these spaces, throughvisual stimulation, can have a profound impact on children's emotional states and behavioral patterns. The scientific and reasonableapplication of colors can effectively inspire positive emotions in children, alleviate their negative feelings, and guide them toengage in exploration, social interaction, and concentration, thereby enhancing the overall interactive experience. In the playenvironment, warm tones can boost vitality, while cool tones bring calmness. A harmonious combination can achieve a dynamicbalance in psychological responses. Such design can optimize the spatial atmosphere and provide a continuous positive orientationfor children's growth. By deeply integrating psychological principles with environmental adaptation, color design becomes a bridgeconnecting emotions and behaviors, effectively preventing children from experiencing emotional problems and promoting the fullrealization of the educational value of play spaces.