Board Thread:Questions and Answers/@comment-2016820-20130531212653/@comment-675805-20130601010152

Umm technically speaking Kingranger is a gold ranger. In fact the entire shape motif of Ohranger seems to be what voicelugger's was based on and voicelugger(which came out only three years after Ohranger ended) did in fact have a gold. It did lack a yellow however...

Now granted voicelugger effectively did come out after zeo, but it's entirely possible Kinganger was meant to be a gold all along.

There has never been a black 6th ranger, and battle kenya is the only one I know who's really been retconned like that.