title: How to get RGB values from UIColor?
body: <p>I'm creating a color object using the following code.</p>
  
  <pre><code>curView.backgroundColor = [[UIColor alloc] initWithHue:229 saturation:40 brightness:75 alpha:1];
  </code></pre>
  
  <p>How can I retrieve RGB values from the created color object?</p>