excel/vba rgb value in cell

hello,
I have this problem that is driving me crazy!

row a row b
uk RGB(191, 13, 31)
usa RGB(11, 47, 107)

I have a form with a combobox where there is a list from row a, now with a macro I should change the background of a texbox with the color of row b.
I get the error at thi " TextBox1.BackColor = y"
this is the macro

Private Sub CBcolore_Change()

Dim rng As Range
Dim z
Dim col
Dim y

    x = UserForm1.CBcolore.Value
    z = Sheets("ELENCHI").Range("B2:B1000")
        With Sheets("ELENCHI").Range("G1:G10000")
            Set rng = .Find(What:=x, LookIn:=xlValues)
                If Not rng Is Nothing Then
                    Application.Goto rng, True
                    
    ActiveCell.Offset(0, 1).Select

    y = ActiveCell.Value

    TextBox1.BackColor = y
                    Exit Sub
                End If
        End With

end sub

thanks for your help