How to highlight duplicate values in different colors in Excel?

In Excel, we can easily highlight the duplicate values in a column with one color by using the Conditional Formatting, but, sometimes, we need to highlight the duplicate values in different colors to recognize the duplicates quickly and easily as following screenshot shown. How could you solve this task in Excel?
Highlight duplicate values in a column with different colors by using VBA code
Highlight duplicate values in a column with different colors by using VBA code
In fact, there is no direct way for us to finish this job in Excel, but, the below VBA code may help you, please do as follows:
1. Select the column of values that you want to highlight duplicates with difference colors, then hold down the ALT + F11 keys to open the Microsoft Visual Basic for Applications window.
2. Click Insert > Module, and paste the following code in the Module Window.
VBA code: Highlight duplicate values in different colors:
Sub ColorCompanyDuplicates() 'Updateby Extendoffice Dim xRg As Range Dim xTxt As String Dim xCell As Range Dim xChar As String Dim xCellPre As Range Dim xCIndex As Long Dim xCol As Collection Dim I As Long On Error Resume Next If ActiveWindow.RangeSelection.Count > 1 Then xTxt = ActiveWindow.RangeSelection.AddressLocal Else xTxt = ActiveSheet.UsedRange.AddressLocal End If Set xRg = Application.InputBox("please select the data range:", "Kutools for Excel", xTxt, , , , , 8) If xRg Is Nothing Then Exit Sub xCIndex = 2 Set xCol = New Collection For Each xCell In xRg On Error Resume Next xCol.Add xCell, xCell.Text If Err.Number = 457 Then xCIndex = xCIndex + 1 Set xCellPre = xCol(xCell.Text) If xCellPre.Interior.ColorIndex = xlNone Then xCellPre.Interior.ColorIndex = xCIndex xCell.Interior.ColorIndex = xCellPre.Interior.ColorIndex ElseIf Err.Number = 9 Then MsgBox "Too many duplicate companies!", vbCritical, "Kutools for Excel" Exit Sub End If On Error GoTo 0 Next End Sub
3. And then press F5 key to run this code, and a prompt box will remind you to select the data range that you want to highlight the duplicate values, see screenshot:
4. Then click OK button, all the duplicate values have been highlighted in different colors, see screenshot:
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