Quick question.
Should the front bucket seatbacks match the colour (Canadian spelling) of the car's interior upholstery?

I have an early car with metal seatbacks and deluxe parchment interior. I am in the process of redoing the interior. At present the seatbacks are much whiter than the parchment colour. Not sure if this is due to time, a repaint or something else.

My 69 matches the consol, kick panels, dash

Does anyone else have an opinion or suggestion on this (seatback colour)?

Does anyone have a 67 camaro with deluxe parchment interior that can tell me what colour their seat backs are?