diff --git a/ClosedXML/Excel/Style/XLBorder.cs b/ClosedXML/Excel/Style/XLBorder.cs
index 3230b62..051b049 100644
--- a/ClosedXML/Excel/Style/XLBorder.cs
+++ b/ClosedXML/Excel/Style/XLBorder.cs
@@ -276,7 +276,7 @@
             set
             {
                 if (value == null)
-                    throw new ArgumentNullException("Color cannot be null");
+                    throw new ArgumentNullException(nameof(value), "Color cannot be null");
 
                 Modify(k => { k.LeftBorderColor = value.Key; return k; });
             }
@@ -294,7 +294,7 @@
             set
             {
                 if (value == null)
-                    throw new ArgumentNullException("Color cannot be null");
+                    throw new ArgumentNullException(nameof(value), "Color cannot be null");
 
                 Modify(k => { k.RightBorderColor = value.Key; return k; });
             }
@@ -312,7 +312,7 @@
             set
             {
                 if (value == null)
-                    throw new ArgumentNullException("Color cannot be null");
+                    throw new ArgumentNullException(nameof(value), "Color cannot be null");
 
                 Modify(k => { k.TopBorderColor = value.Key; return k; });
             }
@@ -330,7 +330,7 @@
             set
             {
                 if (value == null)
-                    throw new ArgumentNullException("Color cannot be null");
+                    throw new ArgumentNullException(nameof(value), "Color cannot be null");
 
                 Modify(k => { k.BottomBorderColor = value.Key; return k; });
             }
@@ -348,7 +348,7 @@
             set
             {
                 if (value == null)
-                    throw new ArgumentNullException("Color cannot be null");
+                    throw new ArgumentNullException(nameof(value), "Color cannot be null");
 
                 Modify(k => { k.DiagonalBorderColor = value.Key; return k; });
             }
diff --git a/ClosedXML/Excel/Style/XLFill.cs b/ClosedXML/Excel/Style/XLFill.cs
index b7eca8e..12f39f7 100644
--- a/ClosedXML/Excel/Style/XLFill.cs
+++ b/ClosedXML/Excel/Style/XLFill.cs
@@ -89,7 +89,7 @@
             set
             {
                 if (value == null)
-                    throw new ArgumentNullException("Color cannot be null");
+                    throw new ArgumentNullException(nameof(value), "Color cannot be null");
 
                 // 4 ways of determining an "empty" color
                 if (new XLFillPatternValues[] { XLFillPatternValues.None, XLFillPatternValues.Solid }.Contains(PatternType)
@@ -111,7 +111,7 @@
             set
             {
                 if (value == null)
-                    throw new ArgumentNullException("Color cannot be null");
+                    throw new ArgumentNullException(nameof(value), "Color cannot be null");
 
                 Modify(k => { k.PatternColor = value.Key; return k; });
             }
diff --git a/ClosedXML/Excel/Style/XLFont.cs b/ClosedXML/Excel/Style/XLFont.cs
index 103c405..0b3e572 100644
--- a/ClosedXML/Excel/Style/XLFont.cs
+++ b/ClosedXML/Excel/Style/XLFont.cs
@@ -154,7 +154,7 @@
             set
             {
                 if (value == null)
-                    throw new ArgumentNullException("Color cannot be null");
+                    throw new ArgumentNullException(nameof(value), "Color cannot be null");
                 Modify(k => { k.FontColor = value.Key; return k; });
             }
         }