Salut,
voilà pour compter :
Function CountByColor(InputRange As Range, ColorRange As Range) As Long
Dim cl As Range, TempCount As Long, ColorIndex As Integer
ColorIndex = ColorRange.Cells(1, 1).Interior.ColorIndex
TempCount = 0
For Each cl In InputRange.Cells
If cl.Interior.ColorIndex = ColorIndex Then TempCount = TempCount + 1
Next cl
Set cl = Nothing
CountByColor = TempCount
End Function
Patrick