or is that colours?

From what I have seen so far, it seems like leather day sporrans are produced in a wide rainbow of colors, as long as black and brown are the only colors in the rainbow.

Is that true? Would the sight of a sporran in oxblood be shocking? (red-brown color, not actual blood, just to be clear) Or should I go with Spanish Brown (an orangish light brown) without objection?

What about a really dark green or navy blue?

Trying to get a sense of the sensibilities before starting a few upcoming projects.

(intending to link the Fiebing's dye color chart, hopefully it works)