diff -up qgis-2.16.2/src/gui/symbology-ng/qgsvectorgradientcolorrampv2dialog.cpp.qreal qgis-2.16.2/src/gui/symbology-ng/qgsvectorgradientcolorrampv2dialog.cpp
--- qgis-2.16.2/src/gui/symbology-ng/qgsvectorgradientcolorrampv2dialog.cpp.qreal	2016-08-26 05:58:37.000000000 -0600
+++ qgis-2.16.2/src/gui/symbology-ng/qgsvectorgradientcolorrampv2dialog.cpp	2016-09-26 14:27:41.330518186 -0600
@@ -414,15 +414,15 @@ void QgsVectorGradientColorRampV2Dialog:
   QColor newColor = mStopEditor->selectedStop().color;
 
   if ( mCurrentPlotColorComponent == 0 )
-    newColor = QColor::fromHslF( qBound( 0.0, point.y(), 1.0 ), newColor.hslSaturationF(), newColor.lightnessF(), newColor.alphaF() );
+    newColor = QColor::fromHslF( qBound( qreal( 0.0 ), point.y(), qreal( 1.0 ) ), newColor.hslSaturationF(), newColor.lightnessF(), newColor.alphaF() );
   else if ( mCurrentPlotColorComponent == 1 )
-    newColor = QColor::fromHslF( newColor.hslHueF(), newColor.hslSaturationF(), qBound( 0.0, point.y(), 1.0 ), newColor.alphaF() );
+    newColor = QColor::fromHslF( newColor.hslHueF(), newColor.hslSaturationF(), qBound( qreal( 0.0 ), point.y(), qreal( 1.0 ) ), newColor.alphaF() );
   else if ( mCurrentPlotColorComponent == 2 )
-    newColor = QColor::fromHslF( newColor.hslHueF(), qBound( 0.0, point.y(), 1.0 ), newColor.lightnessF(), newColor.alphaF() );
+    newColor = QColor::fromHslF( newColor.hslHueF(), qBound( qreal( 0.0 ), point.y(), qreal( 1.0 ) ), newColor.lightnessF(), newColor.alphaF() );
   else if ( mCurrentPlotColorComponent == 3 )
-    newColor = QColor::fromHslF( newColor.hslHueF(), newColor.hslSaturationF(), newColor.lightnessF(), qBound( 0.0, point.y(), 1.0 ) );
+    newColor = QColor::fromHslF( newColor.hslHueF(), newColor.hslSaturationF(), newColor.lightnessF(), qBound( qreal( 0.0 ), point.y(), qreal( 1.0 ) ) );
 
-  mStopEditor->setSelectedStopDetails( newColor, qBound( 0.0, point.x(), 1.0 ) );
+  mStopEditor->setSelectedStopDetails( newColor, qBound( qreal( 0.0 ), point.x(), qreal( 1.0 ) ) );
 }
 
 bool byX( QPointF p1, QPointF p2 )