There is no uniform requirement for university diploma photos, but all university diploma photos are blue. Try to wear light clothes, not the same color as the background.

University graduation photo assembly requirements, dress code, bareheaded, light-colored coat, bare forehead and ears, not wearing a blue coat close to the background, must wear a collared coat, not wearing turtle neck to cover the neck, not wearing color-changing glasses and sunglasses, not wearing necklaces, earrings and other accessories. The background color of the photo is blue. The picture size is 480 pixels wide and 640 pixels high.