When you ask about paint for touch up, I assume you are looking for gel coat touch up. Considering the huge variance of fading on your gel coat over ten years for your boat matching will be an individual thing. Companies like Evercoat and Magicezy and others make kits for repair. There are unlimited videos online about DIY gel coat repair.
Some people have had success...maybe somewhat temporary...using colored waxes like Turtle Wax Magic Colour Ultra Blue for minor swirls and chips and scratches. There have been previous discussions about colored waxes here on TugNuts.......try using the search engine to access those if interested...............good luck with your project...