I'm thinking tint to your choice is best possible choice.
worse comes to worse take off your anchor hatch and see what that matches to.
A lot of the new boats are going off white decks.
When I did my decks I had that white outlining around hatches, mast, etc ... but decided that I was a sailor not a painter on a boat ... so just painted any gell coat on deck that was deck ... light gray. there is only so far i will go with masking tape.
One more note for interdeck painters ... it takes nearly a week to cure for action level activity.