diff --git a/components/fpspreadsheet/source/common/xlsxooxml.pas b/components/fpspreadsheet/source/common/xlsxooxml.pas
index be40f64a1..dbd8e7c72 100644
--- a/components/fpspreadsheet/source/common/xlsxooxml.pas
+++ b/components/fpspreadsheet/source/common/xlsxooxml.pas
@@ -1118,7 +1118,10 @@ begin
 
   s := GetAttrValue(ANode, 'rgb');
   if s <> '' then begin
-    Result := HTMLColorStrToColor('#' + s);
+    if s[1] = '#' then
+      Result := HTMLColorStrToColor(s)
+    else
+      Result := HTMLColorStrToColor('#' + s);
     exit;
   end;