GetGreyScale - Convert a color to greyscale

' Convert a color to greyscale
' Example: Me.BackColor = GetGreyScale(Color.Red)

Function GetGreyScale(ByVal col As Color) As Color
    Dim greyValue As Integer = CType(col.R * 0.3 + col.G * 0.59 + col.B * 0.11, _
        Integer)
    Return Color.FromArgb(greyValue, greyValue, greyValue)
End Function