diff --git a/src/gui/kernel/qguiapplication.cpp b/src/gui/kernel/qguiapplication.cpp
index 1d7cd37f67..6602411798 100644
--- a/src/gui/kernel/qguiapplication.cpp
+++ b/src/gui/kernel/qguiapplication.cpp
@@ -2643,7 +2643,9 @@ void QGuiApplicationPrivate::processThemeChanged(QWindowSystemInterfacePrivate::
 
     QIconPrivate::clearIconCache();
 
-    QStyleHintsPrivate::get(QGuiApplication::styleHints())->updateColorScheme(colorScheme());
+    const auto newColorScheme = platformTheme() ? platformTheme()->colorScheme()
+                                                : Qt::ColorScheme::Unknown;
+    QStyleHintsPrivate::get(QGuiApplication::styleHints())->updateColorScheme(newColorScheme);
 
     QEvent themeChangeEvent(QEvent::ThemeChange);
     const QWindowList windows = tce->window ? QWindowList{tce->window} : window_list;
@@ -2651,18 +2653,6 @@ void QGuiApplicationPrivate::processThemeChanged(QWindowSystemInterfacePrivate::
         QGuiApplication::sendSpontaneousEvent(window, &themeChangeEvent);
 }
 
-/*!
-   \internal
-   \brief QGuiApplicationPrivate::colorScheme
-   \return the platform theme's color scheme
-   or Qt::ColorScheme::Unknown if a platform theme cannot be established
- */
-Qt::ColorScheme QGuiApplicationPrivate::colorScheme()
-{
-    return platformTheme() ? platformTheme()->colorScheme()
-                           : Qt::ColorScheme::Unknown;
-}
-
 void QGuiApplicationPrivate::handleThemeChanged()
 {
     updatePalette();
diff --git a/src/gui/kernel/qguiapplication_p.h b/src/gui/kernel/qguiapplication_p.h
index 2bfcd87f3f..cca79534fc 100644
--- a/src/gui/kernel/qguiapplication_p.h
+++ b/src/gui/kernel/qguiapplication_p.h
@@ -323,8 +323,6 @@ public:
 
     static void updatePalette();
 
-    static Qt::ColorScheme colorScheme();
-
 protected:
     virtual void handleThemeChanged();
 
diff --git a/src/plugins/styles/modernwindows/qwindows11style.cpp b/src/plugins/styles/modernwindows/qwindows11style.cpp
index bbd70e8e7f..111a37ea2c 100644
--- a/src/plugins/styles/modernwindows/qwindows11style.cpp
+++ b/src/plugins/styles/modernwindows/qwindows11style.cpp
@@ -2127,8 +2127,9 @@ static void populateLightSystemBasePalette(QPalette &result)
 void QWindows11Style::polish(QPalette& pal)
 {
     Q_D(QWindows11Style);
-    highContrastTheme = QGuiApplicationPrivate::colorScheme() == Qt::ColorScheme::Unknown;
-    colorSchemeIndex = QGuiApplicationPrivate::colorScheme() == Qt::ColorScheme::Light ? 0 : 1;
+
+    highContrastTheme = QGuiApplication::styleHints()->colorScheme() == Qt::ColorScheme::Unknown;
+    colorSchemeIndex = QGuiApplication::styleHints()->colorScheme() == Qt::ColorScheme::Light ? 0 : 1;
 
     if (!highContrastTheme && colorSchemeIndex == 0)
         populateLightSystemBasePalette(pal);
diff --git a/src/plugins/styles/modernwindows/qwindowsvistastyle.cpp b/src/plugins/styles/modernwindows/qwindowsvistastyle.cpp
index 1df134b629..beee1d6f31 100644
--- a/src/plugins/styles/modernwindows/qwindowsvistastyle.cpp
+++ b/src/plugins/styles/modernwindows/qwindowsvistastyle.cpp
@@ -4755,7 +4755,7 @@ void QWindowsVistaStyle::polish(QPalette &pal)
 {
     Q_D(QWindowsVistaStyle);
 
-    if (QGuiApplicationPrivate::colorScheme() == Qt::ColorScheme::Dark) {
+    if (QGuiApplication::styleHints()->colorScheme() == Qt::ColorScheme::Dark) {
         // System runs in dark mode, but the Vista style cannot use a dark palette.
         // Overwrite with the light system palette.
         using QWindowsApplication = QNativeInterface::Private::QWindowsApplication;