Is it okay to use a one-inch blue background photo for Weifang Dance Competition?

Weifang Dance Competition can use a one-inch blue background photo.

According to China's photography industry standards, the size of an inch photo is 25mm×35mm, and the background is usually required to be blue. In Weifang Dance Competition, contestants are required to submit one-inch photos as one of the registration materials. These photos will be used for identity confirmation and competition promotion. Therefore, the use of one-inch blue background photos is in line with the requirements of the competition.