Duffs
I used a repair kit from here:
http://www.furnitureclinic.co.uk/Leather_Repair.htmto sort a couple of scratches - one from a jeans rivet (I could have cried). My leather is black but they can colour match. The instructions provided are good and the product is excellent, the leather filler being especially impressive, and it's not an expensive kit - and good if you engage in DIY. I have no connection with the above, and am difficult to please being an obsessive OCD type personality. (all spanners polished and in size order etc etc).