# underPageBackgroundColor The color the web view displays behind the active page, visible when the user scrolls beyond the bounds of the page. ``` @NSCopying var underPageBackgroundColor: UIColor! { get set } ``` ## Discussion The web view derives the default value of this property from the content of the page, using the background colors of the `` and `` elements with the background color of the web view. To override the default color, set this property to a new color. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)