title: Extract list of supported HTML or X11 colour names and their RGB values using javascript
body: <p>There are places to get lists of <a href="http://en.wikipedia.org/wiki/Web_colors" rel="nofollow noreferrer">HTML</a> or <a href="http://en.wikipedia.org/wiki/X11_color_names" rel="nofollow noreferrer">X11 colour names</a> and their RGB equivalents.  For instance we can find that "Aquamarine" is "#70DB93".  Presumably the browsers know the mappings.  Is there a way to use javascript to interrogate the browser and get a list of which colour names it supports (along with the RGB the browser plans on using)?</p>