title: UI communication colors
body: <p>I'm creating message boxes with different states. One for success, one for error.</p>
  
  <p>I've using colors ala <a href="http://www.flickr.com/photos/jannejanne/2492207808/sizes/o/" rel="nofollow noreferrer">http://www.flickr.com/photos/jannejanne/2492207808/sizes/o/</a></p>
  
  <p>But I came up with 2 colors too many. Blue and Yellow.</p>
  
  <p>Does anyone know any good patterns/best practices for when to use these standard "Web 2.0" colors? </p>
  
  <p>Thanks!</p>