Help finding a match to my gelcoat

Hey I got a 91 Champion that has screw holes from the previous owners doing. The boat is in excellent condition considering how old she is so I would like to try to fill these holes.

I have read on other websites and posts on BBC about how to fill the holes but where do I go to match the gelcoat? Obviously since it is a 91, I know I can't get the exact match due to age and fading but I would like to find something to make them look less noticable.

Any ideas or tips would be greatly appreciated. http://www.bassboatcentral.com/smileys/USA1.gif