title: How to random generate fully saturated colors only?
body: <p>I normally use the following code to generate random colors:</p>
  
  <pre><code>Random rand = new Random();
  
  Color random = Color.FromArgb((int)(rand.NextDouble() * 255), 
                                (int)(rand.NextDouble() * 255), 
                                (int)(rand.NextDouble() * 255));
  </code></pre>
  
  <p>But most of them look like a variation of gray. How can I restrict the output to only fully saturated colors?</p>
  
  <p>Thanks.</p>