title: How can I compute human readable colour names from hex or rgb values
body: <p>After finding the dominant colours in an image via palette extraction, I want to find a nearest neighbour colour name string.</p>
  
  <p>What algorithms or image processing techniques might be suitable for getting the nearest colour name from a known palette such as the <a href="http://www.w3.org/TR/css3-color/#svg-color" rel="nofollow">X11/ CSS palette</a>?</p>