diff --git a/python/gui/auto_generated/qgstabwidget.sip.in b/python/gui/auto_generated/qgstabwidget.sip.in
index 086e5fd1c80..86412a2e8e9 100644
--- a/python/gui/auto_generated/qgstabwidget.sip.in
+++ b/python/gui/auto_generated/qgstabwidget.sip.in
@@ -80,9 +80,9 @@ Is used to keep track of currently available and visible tabs.
 .. versionadded:: 3.0
 %End
 
-    void setTabFont( int tabIndex, const QFont &font );
+    void setTabStyle( int tabIndex, const QFont &font, const QColor &color );
 %Docstring
-Sets the optional custom ``font`` for the tab idenfied by ``tabIndex``.
+Sets the optional custom ``font`` and ``color`` for the tab idenfied by ``tabIndex``.
 
 .. versionadded:: 3.26
 %End
diff --git a/src/gui/qgsattributeform.cpp b/src/gui/qgsattributeform.cpp
index 0b9f53296b8..1fce55d112b 100644
--- a/src/gui/qgsattributeform.cpp
+++ b/src/gui/qgsattributeform.cpp
@@ -1611,7 +1611,7 @@ void QgsAttributeForm::init()
           WidgetInfo widgetInfo = createWidgetFromDef( widgDef, formWidget, mLayer, mContext );
           if ( widgetInfo.overrideLabelStyle )
           {
-            widgetInfo.widget->setStyleSheet( QStringLiteral( "QGroupBox::title { color: rgba(%1,%2,%3,%4); }" ).arg( widgetInfo.labelColor.red() ).arg( widgetInfo.labelColor.green() ).arg( widgetInfo.labelColor.blue() ).arg( QString::number( widgetInfo.labelColor.alphaF(), 'f', 4 ) ) );
+            widgetInfo.widget->setStyleSheet( QStringLiteral( "QGroupBox::title { color: %1; }" ).arg( widgetInfo.labelColor.name( QColor::HexArgb ) ) );
             widgetInfo.widget->setFont( widgetInfo.labelFont );
           }
           layout->addWidget( widgetInfo.widget, row, column, 1, 2 );
@@ -1636,8 +1636,7 @@ void QgsAttributeForm::init()
 
           if ( widgDef->overrideLabelStyle() )
           {
-            tabWidget->setTabFont( tabWidget->tabBar()->count() - 1, widgDef->labelFont() );
-            tabWidget->tabBar()->setTabTextColor( tabWidget->tabBar()->count() - 1, widgDef->labelColor() );
+            tabWidget->setTabStyle( tabWidget->tabBar()->count() - 1, widgDef->labelFont(), widgDef->labelColor() );
           }
 
           if ( containerDef->visibilityExpression().enabled() )
@@ -2263,7 +2262,7 @@ QgsAttributeForm::WidgetInfo QgsAttributeForm::createWidgetFromDef( const QgsAtt
           if ( newWidgetInfo.overrideLabelStyle )
           {
             groupBox->setFont( newWidgetInfo.labelFont );
-            groupBox->setStyleSheet( QStringLiteral( "QGroupBox::title { color: rgba(%1,%2,%3,%4); }" ).arg( newWidgetInfo.labelColor.red() ).arg( newWidgetInfo.labelColor.green() ).arg( newWidgetInfo.labelColor.blue() ).arg( QString::number( newWidgetInfo.labelColor.alphaF(), 'f', 4 ) ) );
+            groupBox->setStyleSheet( QStringLiteral( "QGroupBox::title { color: %1; }" ).arg( newWidgetInfo.labelColor.name( QColor::HexArgb ) ) );
           }
         }
         myContainer = groupBox;
diff --git a/src/gui/qgstabbarproxystyle.cpp b/src/gui/qgstabbarproxystyle.cpp
index 3eb672797a1..be22c75ab67 100644
--- a/src/gui/qgstabbarproxystyle.cpp
+++ b/src/gui/qgstabbarproxystyle.cpp
@@ -30,16 +30,20 @@ void QgsTabBarProxyStyle::drawControl( ControlElement element, const QStyleOptio
 {
   if ( element == CE_TabBarTab && mTabStyles.contains( mTabBar->tabAt( option->rect.center() ) ) )
   {
-    painter->save(); // save the painter to restore later
-    const TabStyle &style { mTabStyles.value( mTabBar->tabAt( option->rect.center() ) ) };
-    painter->setFont( style.font ); // change the defaul font of painter
-    QProxyStyle::drawControl( element, option, painter, widget ); // paint the TabBarTab using the default drawControl
-    painter->restore(); // restore to default painter
-  }
-  else
-  {
-    QProxyStyle::drawControl( element, option, painter, widget ); // use default drawControl to paint all other components without changes.
+    if ( const QStyleOptionTab *tab = qstyleoption_cast<const QStyleOptionTab *>( option ) )
+    {
+      painter->save();
+      const TabStyle &style { mTabStyles.value( mTabBar->tabAt( option->rect.center() ) ) };
+      painter->setFont( style.font );
+      QStyleOptionTab opt { *tab };
+      QProxyStyle::drawControl( element, &opt, painter, widget );
+      painter->restore();
+      return;
+    }
   }
+
+  QProxyStyle::drawControl( element, option, painter, widget );
+
 }
 
 void QgsTabBarProxyStyle::addStyle( int tabIndex, const TabStyle &style )
diff --git a/src/gui/qgstabbarproxystyle.h b/src/gui/qgstabbarproxystyle.h
index 8ad167c119f..26c22878014 100644
--- a/src/gui/qgstabbarproxystyle.h
+++ b/src/gui/qgstabbarproxystyle.h
@@ -38,6 +38,7 @@ class QgsTabBarProxyStyle : public QProxyStyle
     struct TabStyle
     {
       QFont font;
+      QColor color;
     };
 
     QgsTabBarProxyStyle( QTabBar *tabBar );
diff --git a/src/gui/qgstabwidget.cpp b/src/gui/qgstabwidget.cpp
index b45e2fe491d..69470cc5ec9 100644
--- a/src/gui/qgstabwidget.cpp
+++ b/src/gui/qgstabwidget.cpp
@@ -74,9 +74,9 @@ int QgsTabWidget::realTabIndex( QWidget *widget )
   return -1;
 }
 
-void QgsTabWidget::setTabFont( int tabIndex, const QFont &customFont )
+void QgsTabWidget::setTabStyle( int tabIndex, const QFont &font, const QColor &color )
 {
-  mTabBarStyle->addStyle( tabIndex, QgsTabBarProxyStyle::TabStyle{ customFont } );
+  mTabBarStyle->addStyle( tabIndex, QgsTabBarProxyStyle::TabStyle{ font, color } );
 }
 
 void QgsTabWidget::tabInserted( int index )
diff --git a/src/gui/qgstabwidget.h b/src/gui/qgstabwidget.h
index 025c06ab926..81905e1f668 100644
--- a/src/gui/qgstabwidget.h
+++ b/src/gui/qgstabwidget.h
@@ -92,10 +92,10 @@ class GUI_EXPORT QgsTabWidget : public QTabWidget
     void tabRemoved( int index ) override;
 
     /**
-     * Sets the optional custom \a font for the tab idenfied by \a tabIndex.
+     * Sets the optional custom \a font and \a color for the tab idenfied by \a tabIndex.
      * \since QGIS 3.26
      */
-    void setTabFont( int tabIndex, const QFont &font );
+    void setTabStyle( int tabIndex, const QFont &font, const QColor &color );
 
   private:
     void synchronizeIndexes();