Honestly, defensive backs aren't very strong in terms of what people on a weightlifting board would consider strong. At the combine they rep 185, not 225 on the bench press. Aside from the odd freak here and there, I'd probably guess that most couldn't bench 225 for more than 5, maybe a single at 275, some would be much weaker. Squats are hard because you have the depth issue, but trust me, you wouldn't be impressed. Like I said, aside from the odd freak, most DBs wouldn't be able to squat a legit 315 on a good day. Most scouts would rather a kid who could dunk a basketball than one with a big bench because the big bench can be developed, if you've got lead in your ass there isn't much that can be done about that.
It's always fun to compare, I know. Football is thought of as a "strength sport" and a lot of attributes that make one a good athlete also contribute to weightroom strength, but at the D1 level, it's a lot more than being strong. But, you obviously know this. Honestly, if D1 didn't work out, you'd make a hell of a D 3 linebacker . . . D 3 is a place where strength can make a HUGE difference because the skill level is a bit lower, the speed is a bit slower, and being stronger than the next guy can get you further.
For purposes of your question, your strength and speed right now are probably more comparable with a college linebacker if your squats are a ull range of motion. Problem is you're undersized for linebacker at D1 . . . like I said, you'd have a good chance at being a monster linebacker at D 3. You could walk int any D 1 weightroom right now and bench, squat, and deadlift with any safety and likely blow all of them away, save for the rare freak here and there.