# opacity(_:) Sets the transparency of this view. ``` nonisolated func opacity(_ opacity: Double) -> some View ``` ## Parameters `opacity` A value between 0 (fully transparent) and 1 (fully opaque). ## Return Value A view that sets the transparency of this view. ## Discussion Apply opacity to reveal views that are behind another view or to de-emphasize a view. When applying the `opacity(_:)` modifier to a view that has already had its opacity transformed, the modifier multiplies the effect of the underlying opacity transformation. The example below shows yellow and red rectangles configured to overlap. The top yellow rectangle has its opacity set to 50%, allowing the occluded portion of the bottom rectangle to be visible: ``` struct Opacity: View { var body: some View { VStack { Color.yellow.frame(width: 100, height: 100, alignment: .center) .zIndex(1) .opacity(0.5) Color.red.frame(width: 100, height: 100, alignment: .center) .padding(-40) } } } ```  --- 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)