diff --git a/ApplicationLibCode/FileInterface/RifColorLegendData.cpp b/ApplicationLibCode/FileInterface/RifColorLegendData.cpp
index 6e3d4d24aa..4713c43bd8 100644
--- a/ApplicationLibCode/FileInterface/RifColorLegendData.cpp
+++ b/ApplicationLibCode/FileInterface/RifColorLegendData.cpp
@@ -88,7 +88,7 @@ cvf::ref<RigFormationNames> RifColorLegendData::readLyrFormationNameFile( const
             // extract last word which may contain formation color
             QString colorWord = RiaTextStringTools::splitSkipEmptyParts( numberString ).last();
 
-            if ( QColor::isValidColor( colorWord ) ) numberString.remove( colorWord ); // remove color if present as last word on line
+            if ( QColor::isValidColorName( colorWord ) ) numberString.remove( colorWord ); // remove color if present as last word on line
 
             // extract words containing formation number(s)
             QStringList numberWords = RiaTextStringTools::splitSkipEmptyParts( numberString, QRegExp( "-" ) );
@@ -110,7 +110,7 @@ cvf::ref<RigFormationNames> RifColorLegendData::readLyrFormationNameFile( const
                 startK  = tmp < endK ? tmp : endK;
                 endK    = tmp > endK ? tmp : endK;
 
-                if ( QColor::isValidColor( colorWord ) ) // formation color present at end of line
+                if ( QColor::isValidColorName( colorWord ) ) // formation color present at end of line
                 {
                     cvf::Color3f formationColor;
 
@@ -133,7 +133,7 @@ cvf::ref<RigFormationNames> RifColorLegendData::readLyrFormationNameFile( const
                     continue;
                 }
 
-                if ( QColor::isValidColor( colorWord ) ) // formation color present at end of line
+                if ( QColor::isValidColorName( colorWord ) ) // formation color present at end of line
                 {
                     cvf::Color3f formationColor;
 
diff --git a/Fwk/AppFwk/cafProjectDataModel/cafPdmUiCore/cafIconProvider.cpp b/Fwk/AppFwk/cafProjectDataModel/cafPdmUiCore/cafIconProvider.cpp
index 3648b65dab..08aa84b5ae 100644
--- a/Fwk/AppFwk/cafProjectDataModel/cafPdmUiCore/cafIconProvider.cpp
+++ b/Fwk/AppFwk/cafProjectDataModel/cafPdmUiCore/cafIconProvider.cpp
@@ -162,7 +162,7 @@ std::unique_ptr<QIcon> IconProvider::icon( const QSize& size ) const
     bool validIcon = false;
     if ( !m_backgroundColorStrings.empty() )
     {
-        if ( m_backgroundColorStrings.size() == 1u && QColor::isValidColor( m_backgroundColorStrings.front() ) )
+        if ( m_backgroundColorStrings.size() == 1u && QColor::isValidColorName( m_backgroundColorStrings.front() ) )
         {
             pixmap.fill( QColor( m_backgroundColorStrings.front() ) );
             validIcon = true;
@@ -176,7 +176,7 @@ std::unique_ptr<QIcon> IconProvider::icon( const QSize& size ) const
             QLinearGradient gradient( QPointF( 0.0f, 0.0f ), QPoint( size.width(), 0.0f ) );
             for ( size_t i = 0; i < m_backgroundColorStrings.size(); ++i )
             {
-                if ( !QColor::isValidColor( m_backgroundColorStrings[i] ) )
+                if ( !QColor::isValidColorName( m_backgroundColorStrings[i] ) )
                 {
                     validIcon = false;
                     break;
@@ -303,7 +303,7 @@ bool IconProvider::backgroundColorsAreValid() const
         bool validBackgroundColors = true;
         for ( QString colorName : m_backgroundColorStrings )
         {
-            if ( !QColor::isValidColor( colorName ) )
+            if ( !QColor::isValidColorName( colorName ) )
             {
                 validBackgroundColors = false;
                 break;