Dying seat cards different color

[TheTenor]

I'm taking my tan interior to black and grey. I've finished the seat upholstery, but I was wondering if anyone has had any experience dying their seat cards. Any product suggestions? Methods?

I was going to use Duplicolor vinyl spray, but then I saw that they were leather after closer examination.

Any tips or experience would help! Thanks :)

[AwakenNoMore]

Used Duplicolor to change my old RX-7 from tan to black and gray. It works great, the prep is the key. If you scratch it it will show through though. It is just a paint after all. Its not super fragile though.
here's a pic for reference (everything but seats, carpet and dash where color changed):