Which area is referred to as the outermost square of safe margins?

The outermost square of safe margins is referred to as the "Outer" area. In video production, safe margins are guidelines to ensure that important content, especially text and graphics, is properly displayed across different devices.

The "Outer" marginal area indicates the boundary within which all important visual elements should reside so that they are not cut off or distorted in various viewing scenarios, such as TV screens, monitors, or online platforms. It acts as a reassuring guideline for editors, helping them understand how much content can safely extend beyond the more restricted action and title safe areas without risking truncation during playback or broadcast.

Understanding the concept of safe margins, including the relationship between the outer area and the action safe and title safe areas, allows filmmakers and editors to ensure that visuals maintain their integrity across various screenings and formats.