Sub PlageCouleur()
Application.ScreenUpdating = False
Dim Derlig&, i&, x$
Derlig = Worksheets("Feuil1").Range("A" & Rows.Count).End(xlUp).Row
x = 34 'Couleur de départ (modifiable)
For i = 2 To Derlig
With Worksheets("Feuil1").Range("A" & i)
If .Value <> "CC" Then .Interior.ColorIndex = x
If .Value = "HH" Then x = x + 2 Else .Interior.ColorIndex = x
End With
Next i
End Sub