title: How to initialize UIColor from RGB values properly?
body: <p>I am working on an iPhone application which uses various colors. When user selects the particular color button I set drawing color accordingly. I am getting the color for some but in the most of the cases I am getting white color.</p>
  
  <p>Here is my code:</p>
  
  <pre><code>-(IBAction)colorSelected:(UIButton *)sender
  {
  
  switch (sender.tag) 
  {
      case 1:
          self.drawcolor= [UIColor colorWithRed:200 green:191 blue:231 alpha:1];
          break;            
      case 2:
          self.drawcolor= [UIColor colorWithRed:163 green:73 blue:164 alpha:1];
          break;  
      case 3:
          self.drawcolor= [UIColor colorWithRed:112 green:146 blue:76 alpha:1];
          break;  
      case 4:
          self.drawcolor= [UIColor colorWithRed:63 green:72 blue:204 alpha:1];
          break;  
      case 5:
          self.drawcolor= [UIColor colorWithRed:153 green:217 blue:234 alpha:1];
          break;  
      case 6:
          self.drawcolor= [UIColor colorWithRed:0 green:162 blue:232 alpha:1];
          break;          
      case 7:
          self.drawcolor= [UIColor colorWithRed:181 green:230 blue:29 alpha:1];
          break;  
      case 8:
          self.drawcolor= [UIColor colorWithRed:34 green:177 blue:76 alpha:1];
          break;          
      case 9:
          self.drawcolor= [UIColor colorWithRed:239 green:228 blue:176 alpha:1];
          break;          
      case 10:
          self.drawcolor= [UIColor colorWithRed:255 green:201 blue:0 alpha:1];
          break;          
      case 11:
          self.drawcolor= [UIColor colorWithRed:255 green:201 blue:14 alpha:1];
          break;          
      case 12:
          self.drawcolor= [UIColor colorWithRed:237 green:28 blue:36 alpha:1];
          break;          
      case 13:
          self.drawcolor= [UIColor colorWithRed:255 green:127 blue:39 alpha:1];
          break;          
      case 14:
          self.drawcolor= [UIColor colorWithRed:255 green:174 blue:201 alpha:1];
          break;          
      case 15:
          self.drawcolor= [UIColor colorWithRed:185 green:122 blue:87 alpha:1];
          break;          
      case 16:
          self.drawcolor= [UIColor colorWithRed:136 green:0 blue:21 alpha:1];
          break;          
      case 17:
          self.drawcolor= [UIColor colorWithRed:195 green:195 blue:195 alpha:1];
          break;          
      case 18:
          self.drawcolor= [UIColor colorWithRed:127 green:127 blue:127 alpha:1];
          break;          
      case 19:
          self.drawcolor= [UIColor colorWithRed:255 green:255 blue:255 alpha:1];
          break;
      case 20:
          self.drawcolor= [UIColor colorWithRed:0 green:0 blue:0 alpha:1];
          break;  
      default:
          break;
  }
  
  self.preColor=self.drawcolor;
  self.lineWidth=self.prelineWidth;
  }
  </code></pre>
  
  <p>Can any one tell me what I am doing wrong ?
  Sumit</p>