How do I paint my table top to be two-tone?

You could try using chalk paint. You can get chalk paint at Amazon and Walmart. Just lightly hand sand the table and use a cleaner like Krud Kutter before painting.

Dining table tops get a lot of wear and tear. I would use an oil based paint, as the finish that’s on there is oil based.

Yes, cleaning and prep work are critical and about 75% of the work.

I lightly sanded mine down, then restained with a darker stain. Used Poly 4 coats, lightly sanding in between. Looks great.

If you paint your table top with chalk paint you should use polyurathane as a final sealer. Water based poly will not yellow.