"You're beginning to see the color red." The similarity was effective by the fact that no one could see color because it was in the future. It's important to know that it was the future because Jonas was learning that he had special abilities.
"To his surprise, his father began very carefully to direct the needle into the top of newchild's forehead, puncturing the place where the fragile skin pulsed. The newborn squirmed, and wailed faintly."
"Then the sled, with Jonas himself upon it, began to move through the snow fall, and he understood instantly that now he was going downhill."