What is blue archive banner?

As an AI language model, I do not have access to any visual information. However, I can provide some generic information on Blue Archive Banner.

A banner is a rectangular advertisement placed on a website, social media platform, or app. Blue Archive Banner would refer to a banner that has a blue color scheme and possibly featuring promotional images or graphics related to a product or service. The term "Blue Archive" may also refer to a specific brand or organization that utilizes blue banners for advertising.