Answer:
Yellow
Step-by-step explanation:
As per the Hertzsprung-Russell diagram, stars which are hot lie on left hand side of the diagram while the stars which are cool lie on the right hand side of the diagram.
However while moving from top to bottom on HR diagram, bright stars lie at the top while the faint stars ;lie at the bottom of the diagram.
However Sun is an average star which has mediocre temperature and luminosity and therefore it lies near to the middle of the diagram.
Hence, it is yellow in color