title: How do I create a UIColor from RGBA?
body: <p>I want to use <code>NSAttributedString</code> in my project, but when I'm trying to set color, which isn't from the standard set (<code>redColor</code>, <code>blackColor</code>, <code>greenColor</code> etc.) <code>UILabel</code> displays these letters in white color.
  Here is my line of this code.</p>
  
  <pre><code>[attributedString addAttribute:NSForegroundColorAttributeName
                           value:[UIColor colorWithRed:66
                                                 green:79
                                                  blue:91
                                                 alpha:1]
                           range:NSMakeRange(0, attributedString.length)];
  </code></pre>
  
  <p>I tried to make color with <code>CIColor</code> from Core Image framework, but it showed the same results.
  What should I change in my code to perform it in right way?</p>
  
  <p>Thx for answers, guys!</p>