Lay the drawers on their backs and push them together as close as possible. Make sure they're in the same arrangement as they will be once they're back in the dresser. Measure and mark the pattern for positioning the tape.
Tape just inside the lines. At the corners, hold the tape down with your fingernails and tear it to make a perfect inside corner. Use a little of the first color to seal the tape edges.
Apply the second color of paint over the entire surface of the drawers, including the tape, and let it dry completely.
Use a narrower tape to create the next part of the pattern. Place the tape right on the outside edge of the first. This time, though, use a utility knife to cut the tape at the corners. Again, apply a little of the second color of paint to seal the tape. Next, paint the outside edge of the drawers only, as if you were painting a frame around them. Carefully remove all of the tape.