I guess you're still in high school so it's probably not the guy you will marry but anyway it can feel like if it was. And that's the most important thing.
You shouldn't give up your love just cause your parents are a little stubborn on things like skin colors...
I know your age sn't easy at all and that the point of view of your parents counts a lot... But they wont marry him at your place. They are not going to live with him later. So never mind what they think.
Of course secret is hard to live... But if their parents accept you it's fine... You'll have a place to see each others other than your house.

I can just give you a little advice; try to lie the less you can... Lying about that can bring lot of troubles if the parents discover the truth... I did that before and got problems... I just hope you can have a real discussion with your parents about that boy you love and make them see the good points he has and the reasons you love him... It's important to have their approval on love... But you can live without it if necessary...

Good luck.

PS :A sorry if you think I shouldn't have come into your troubles... We don't know each others...

Hey how are ya doin'?
hmm..it's very interesting all that
Well:
1st thing don't abandon your love its not worth it to ruin everything for your parents
2nd talk with your boyfriend and ask him if he could stand more this secret relationshipa and
3rd try to have a cool conversation with your parents abt the black guys tell them if you have to that there is someone in your class who's a very good guy and that you like him and slowly try to tell your parents that there is something between him and you...

Oh and don't be afraid of them usually parents know everything even the things that we don't tell them but they never talk abt them till we go and talk for their advice

I hope i helped ya a little bit^_^