Question

Why are tomatoes red in color

Answer 1

As the tomato ripens, its colour starts to change from green to yellow and then eventually to red. This is due to the breakdown of chlorophyll, which in turn synthesises a red carotenoid (another pigment group), lycopene. When ripe, the carotenoid can easily be seen as the dominant colour of thetomato, ie red.

Answer 2

BIOLOGICALLY:
Tomatoes are red due to the red pigment. The red pigment is natural.
According to physics, Tomatoes are red bacause they absorb all other lights and reflect red.