Validation Control for change border color of textbox

I want to change the background and border color of textbox when its validated bay validation control. Here ErrorMessage="*" But is want also change the background or border color of textbox.

<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="TextBox1" ErrorMessage="*"></asp:RequiredFieldValidator>