In my case, I override preferredStatusBarStyle in the view controller, then the color is right.

I did two things to solve this problem, here is the example code: let webConfiguration = WKWebViewConfiguration() if UIDevice.current.userInterfaceIdiom != .phone { let prefer = WKWebpagePreferences() prefer.preferredContentMode = .mobile webConfiguration.defaultWebpagePreferences = prefer } webView = WKWebView(frame: .zero, configuration: webConfiguration) if UIDevice.current.userInterfaceIdiom != .phone { webView.customUserAgent = "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.0 Safari/605.1.15" }