Gelcoat color charts by year?

[SailorChlud]

Since gelcoat repairs are ubiquitous in keeping these old boats alive, and many guys, me especially, are terrible at color matching small batches of gelcoat, is there a body of information for the factory gelcoat colors by year?

For example, my hull is a 1972 Seafari, and is the off-white/cream color.

Is there a way to assemble a chart by year and model as a reference for the colors that would indicate the name of the color, the "recipe" of tinting to make the color, and if there is a commercial source of pre-tinted gelcoat for the color? If there is not now such a chart, could we start one, so that future generations of owners can color match with some precision?