will probably be able to mix a small bottle for you, or you can try to find a paint/body shop supplier. I am guessing they can be found in Santo Domingo/Santiago.
Just locate your paint code on the vehicle. Where it is located depends on the year and model of your car, but usually on a plate on the inside of the drivers side door or frame. Older models sometimes had them on the inside of the hood, on the radiator support, or on a sticker inside the glove compartment.
Hope that was helpful.
Respectfully,
Playacaribe2