How to set the color of a close button for a tab page in c# winforms

I have a tab control say tabMain . In the first tab which is my Home tab I have a dropdown and an Add Button. When I click the add button a new tab would be opened with the selected item as tab header. Along with the tab header I need to include a close button . Right now I have the close button But I also need to set a background color for the close button. Here is a portion of my code.

 TabPage newTabPage= new TabPage();   
 newTabPage.Text = cmbType.SelectedItem.ToString() +"  X";
 tabMain.TabPages.Add(newTabPage);

In my mouse down event I have included the function for close.

 private void tabMain_MouseDown(object sender, MouseEventArgs e)
    {
        try
        {                
            if (tabMain.SelectedIndex > 0)
            {
                Rectangle r = tabMain.GetTabRect(tabMain.SelectedIndex);                    
                Rectangle closeButton = new Rectangle(r.Right - 15, r.Y, 15, 18);

                if (closeButton.Contains(e.Location))
                {
                    if (MessageBox.Show("Would you like to Close this Tab?", "Confirm", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
                    {
                        this.tabMain.TabPages.RemoveAt(tabMain.SelectedIndex);
                    }
                }
            } 
        }
        catch(Exception)
        {
            MessageBox.Show("Exception in closing a tab");
        }
    }

My close button is working fine. But I need to set a color for the close button . I have also tried including a label . Here is the code

TabPage newTabPage = new TabPage();                
Label labelClose = new Label();
labelClose.Text = "  X";
labelClose.BackColor = System.Drawing.Color.Red;               
newTabPage.Text = cmbType.SelectedItem.ToString() + labelClose.Text;
tabMain.TabPages.Add(newTabPage); 

Any help would be appreciated. Thanks in advance