Question

Why The colour of tyre is black

Answer 1

Although the natural color of rubber is a milky white, the black colour we see was originally caused by soot. ... One way carbon black expands the lifespan of tyres is by conducting heat away from parts of the tyre that tend to get particularly hot when driving, such as the tread and belt areas.

Answer 2

The black colour if tyres comes from the carbon black a material that provides greatly improved characteristics and heat dissipation



Hope it helps ...
Regards @merlin