camembert

As the topic suggests, I have purchased a new plastic boot spoiler for my C4 coupe & I'm at a loss for which shade of black to paint it. Well, I'm getting a shop to prep, paint and fit it but it falls upon my narrow shoulders to kick it off! My car is silver (EZR) but I have a preference to have the spoiler painted black as I have already fitted dark black tail lights and plan to tint the lower hatch window only, too. Any assistance would be most appreciative. :)