I bought gelcoat from Gelcoat Products (958 N. 127th Street, Seattle, WA 206-781-1162) and it matched my 2002 perfectly (I had it shipped to me though).
My order consisted of the following:
9434 QT Sea Dory[sic] White CCP
9305 PT Sea Dory[sic] Tailgate Blue
When I called them I had these color codes on hand (my boat has the typical cream-colored white and the blue stripes).
Tailgate Blue: Cook Composites # 953-LJ-110
Cdory White Gelcoat: CCP # DX 963-WK-506
I also ordered the hardener, etc.
If you have stripes of another color, here is a list I have saved (but I've only tried the blue of course):
Forest Green: Cook Composites # 953-GJ-081
Cabarnet: Cook Composites # 953-MA-206 [Cabernet/maroon]
Roberts Gray: CCP # 963-AK-212
Black: CCP # 944-B-096
Red CCP # 953RA076
Cdory White Enamel: CCP # DX 948-WA-441 [Not sure what this is]