The Confederate fight flag, generally well-known by means of its distinctive blue saltire opposed to a crimson field

https://johnathanxqgy357.inkharbory.com/posts/reenactors-and-their-favorite-civil-war-flags-a-community-perspective

The Confederate conflict flag, almost always acknowledged via its varied blue saltire against a purple area, became an enduring image of Southern pride and history, in spite of its debatable connotations.