JAXX455

I had the bottom portion of my front bench seat reupholstered (Because the *** section of the passenger side was torn up pretty bad) but the shop only reupholstered the passenger side *** area when they were supposed to do the whole bottom bench. (Driver side to passenger side)
My question is, they did not match the color of a dark saddle brown, its a lighter brown and I want to know if I can dye that section of the seat to match the original color.
1. What dye should I use?
2. Will it come off during normal wear and tear of sitting down, sliding in and out etc.... because it's on the *** area.