title: C#: Create a lighter/darker color based on a system color
body: <blockquote>
    <h2>Duplicate</h2>
    
    <p><a href="https://stackoverflow.com/questions/737217/how-do-i-adjust-the-brightness-of-a-color">How do I adjust the brightness of a color?</a><br>
    <a href="https://stackoverflow.com/questions/97646/how-do-i-determine-darker-or-lighter-color-variant-of-a-given-color">How do I determine darker or lighter color variant of a given color?</a><br>
    <a href="https://stackoverflow.com/questions/141855/programmatically-lighten-a-color">Programmatically Lighten a Color</a>  </p>
  </blockquote>
  
  <hr>
  
  <p>Say I have</p>
  
  <pre><code>var c = Color.Red;
  </code></pre>
  
  <p>Now I want to create a new <code>Color</code> that is lighter or darker than that color. How can I do that without too much hassle?</p>