The HSV color model mapped to a cylinder. POV-Ray source is available from the POV-Ray Object Collection.
<ul><li><a href="//commons.wikimedia.org/wiki/File:HSV_color_solid_cylinder.png" title="File:HSV color solid cylinder.png">HSV_color_solid_cylinder.png</a>: <a href="//commons.wikimedia.org/wiki/User:SharkD" class="mw-redirect" title="User:SharkD">SharkD</a></li>
<li>derivative work: <span style="border:1px solid #f57900;padding:1px;"><a href="//commons.wikimedia.org/wiki/User:SharkD" class="mw-redirect" title="User:SharkD"><span style="color:#8f5902;padding-left:1px;">SharkD</span></a> <a href="//commons.wikimedia.org/wiki/User_talk:SharkD" class="mw-redirect" title="User talk:SharkD"><span style="color:#fff;background:#fcaf3e;"> Talk </span></a></span></li></ul>
CC BY-SA 3.0
<ul><li><a href="//commons.wikimedia.org/wiki/File:HSV_color_solid_cylinder.png" title="File:HSV color solid cylinder.png">HSV_color_solid_cylinder.png</a></li></ul>