title: CSS Filter grayscale: I want it Black
body: <p>I am using the following css to convert my color images to grayscale.</p>
  
  <pre><code>img.desaturate{
      filter: grayscale(100%);
      -webkit-filter: grayscale(100%);
      -moz-filter: grayscale(100%);
      -ms-filter: grayscale(100%);
      -o-filter: grayscale(100%);
      filter: url(desaturate.svg#greyscale);
      filter: gray;
      -webkit-filter: grayscale(1);
  }
  </code></pre>
  
  <p>BUT I want it <strong>Black</strong> (rgb(0,0,0) or #000000), and not grey. Is it possible?</p>