Black X Icon - Universal Symbol for Close, Cancel, or Error #3387544 (License: Personal Use)

This image features a thick, solid black X centered on a pure white square background, rendered with sharp edges and no gradients. The design follows minimalist principles, ensuring maximum legibility at small sizes and strong visual impact in user interfaces. Its symmetry and high contrast make it suitable for both web and mobile applications.

Commonly used as a close button in modals, pop-ups, or tabs; as an error indicator in forms; or as a delete/cancel action in toolbars. Matches user intent to dismiss, reject, or correct input.