What breed is my cat? (Please be specific)?

It is a regular short hair domestic they come in many different colors.

Definitely just Blue and White domestic shorthair - no breed or mix like over 97% of cats.

Domestic short hair color is blue and white bicolor. Most cats in the world aren't a breed or a mix of breeds, they are the cats that Nature created and are called domestics. Doesn't make them any less special.

A sweat heart, a domestic cat.