How to change the backcolor of a listview subitem using its own value

How can I programmatically change the back color of a single cell in a listview using its own value?

The values in the ColorFlag Column Came from the database.

Here is my code:

foreach(DataRow dr in _dataTbl.Rows) 
        {
            _markOW = dr["Mark"].ToString();
            _stock = dr["Stock"].ToString();
            _SteelSectio = dr["SteelSection"].ToString();
            _colo = (Int32)dr["Color"];


            ListViewItem _lvi = new ListViewItem(_markOW);
            _lvi.SubItems.AddRange(new string[]{_SteelSectio, _stock,     _colo.ToString()});

            _myListView.Items.Add(_lvi);   }

Here is the code that I have tried to change the backcolor of the cells:

for (int _i = 0; _i < _owLV.Items.Count; _i++)
            {
                _myListView.Items[_i].UseItemStyleForSubItems = false;
                _myListView.Items[_i].SubItems[3].BackColor = Color.FromArgb(_colo);
            }

Thanks in advance