Chronological List of Rangers with Unclassified Colors
Shirou Akebono (Kenji Ohba) is Battle Kenya in Battle Fever J is commonly associated with the color black and green. His suit is almost entirely black. However, in Gokaiger his key glowed green. His Ranger Key bow is black but his key produces a Green Charge. Likewise in BFJ, Battle Kenya was associated with both black and green for colors.
Doggie Kruger (voiced by Tetsu Inada) is DekaMaster in Tokusou Sentai Dekaranger. His suit has the attributes of a black ranger, at the same time, metallic blue. His Ranger Key is labeled and registers as Black. His transformation color is blue.