Found a solution.
Here is my code:
If e.ColumnIndex = 5 AndAlso Len(e.Value) > 0 Then
e.CellStyle.BackColor = Color.FromArgb(235, 255, 238)
e.CellStyle.ForeColor = Color.FromArgb(0, 100, 50)
e.CellStyle.Font = New Font("Adobe Caslon Pro", 12, FontStyle.Italic)
ElseIf e.ColumnIndex = 5 AndAlso Len(e.Value) <= 0 Then
e.CellStyle.BackColor = Color.FromArgb(175, 255, 255)
End If
Thanks for helping.