title: Change built-in colors
body: <p>I just wanna ask how to change these build-in colors in Angular 2 material.</p>
  
  <p>Its specified in the ng2-material docs:
  <code>color: "primary"|"accent"|"warn"</code></p>
  
  <p>How to change colors in these palettes? Or even how to just change that blue color of the text?</p>
  
  <p><br>
  I've tried this and it doesn't work.</p>
  
  <pre><code>md-input: {
    color: black;
    border-color: black
  }
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/duUWG.png" rel="noreferrer"><img src="https://i.stack.imgur.com/duUWG.png" alt="enter image description here"></a></p>