How to change the input field's text color in MaterializeCSS?
<p>How can I change the text color entered into the <code>input-field</code> of <code>MaterializeCSS</code>? The <a href="http://materializecss.com/forms.html" rel="nofollow">documentation</a> demonstrates how to change the color of labels or the underline, but not the color of the text.</p>

<pre><code> /* label color */
   .input-field label {
     color: #000;
   }
   /* label focus color */
   .input-field input[type=text]:focus + label {
     color: #000;
   }
   /* label underline focus color */
   .input-field input[type=text]:focus {
     border-bottom: 1px solid #000;
     box-shadow: 0 1px 0 0 #000;
   }
   /* valid color */
   .input-field input[type=text].valid {
     border-bottom: 1px solid #000;
     box-shadow: 0 1px 0 0 #000;
   }
   /* invalid color */
   .input-field input[type=text].invalid {
     border-bottom: 1px solid #000;
     box-shadow: 0 1px 0 0 #000;
   }
   /* icon prefix focus color */
   .input-field .prefix.active {
     color: #000;
   }
</code></pre>

<p>The documentation also states that it's possible to modify the <code>sass</code> variables:</p>

<blockquote>
  <p>Here is a CSS template for modifying input fields in CSS. With Sass,
  you can achieve this by just changing a variable. The CSS shown below
  is unprefixed. Depending on what you use, you may have to change the
  type attribute selector.</p>
</blockquote>

<p>But does not clarify which <code>sass</code> variables are available to change.</p>