As an important carrier in the field of art therapy, painting color plays a unique therapeutic value in the practice of psychological education in universities. Color psychology theory provides a scientific basis for the healing effects of painting art. Different color wavelengths produce differentiated stimuli to the emotional areas of the brain. Warm colors can stimulate positive emotions and creative vitality, while cool colors can promote emotional regulation and introspective thinking. By constructing a trinity color healing model of individual counseling, group counseling, and crisis intervention, psychological education in universities can effectively identify the characteristics of college students' psychological distress, alleviate academic anxiety, interpersonal difficulties, and emotional fluctuations. The non-verbal expression characteristics of color painting therapy break through the limitations of traditional psychological counseling, providing an effective way for introverted students to vent their emotions, and demonstrating significant advantages in personality improvement and innovative thinking cultivation.