form css 'if selected'

I have a form like this:

<table>
<tr>
<td>
<p>
    <label>
    <input type="radio" name="1" value="1">
    Yes</label>
    <br>
    <label>
    <input type="radio" name="1" value="0">
    No</label>
    <br>
  </p>
 </td>
 <td>
Question one...
</td>
 </tr>
</table>

Code (markup):

What am I trying to do is to have a separate color when nothing is selected and if they select "yes" or "no" the color should change.
Is there any way to do that?