This is a blue shirt. It should be noted that the design of the emoji is different in different systems. For example, the shirt displayed on Apple and Samsung devices is pink; while it is displayed in purple on Twitter, Facebook, and WhatsApp. In addition, a shirt is a top that can be worn between the inner and outer jackets, and can also be worn alone. Men's shirts usually have pockets on the chest. Therefore, the expression can be used to specifically refer to the clothing of shirts.
