Black will absorb more solar radiation than white (or lighter colors) which tend to reflect more heat away.
This is true. However, from what I remember of a couple of studies (I think there were discussed on these forums long ago) when the dark color is on the exterior, the main result was that the interior of the car heated up faster - but it didn't really get any warmer inside. Whether or not this matters when you return to the car depends on how long you leave the car parked outside. It can also mean a little less load on the AC while you are driving in the sun.
On the other hand, a darker interior would get hotter than a lighter interior. In gas cars, I suspect you can always save some energy by going with lighter colors, inside and out.
The calculus is a little more complicated with EVs though. EVs don't have waste heat from the engine to heat the cabin, so cold weather heat sucks more energy than warm weather AC does. Going with darker colors might reduce your overall energy HVAC budget. Of course, it still depends on where you live - in Phoenix, I'd get a light EV. But where I am (Seattle), I think a darker EV makes more sense. We have a dark burgundy Model S with a black interior.
Of course, there are other factors, like safety - I have a light bright color on my Roadster because it's so much smaller than the Model S, despite having considered the energy implications before I purchased the car. But hey, I'm already kind of off topic so I won't head down there.
lolgas, I think your black top looks great.