Function To Sum specific fill or background colored cells in a range

Suppose you want to add cell values on the basis of the background or fill color.

Here is the fucntion.

Function sum_colored_values(x As Range, su As Range)
Dim Y As Range
Dim sm1 As Long
For Each Y In su
If Y.Interior.Color = x.Interior.Color Then
sm1 = sm1 + Y.Value
End If
Next Y
sum_colored_values = sm1
End Function

type like sum_colored_values(f9,$A$2:$A$23)
"$A$2:$A$23" - is a range in which you have to sum the cell values .

"f9" - is a cell having background or fill color

the function will return the sum of values in a range passed who are having the background color same as of "f9"