There is no definitive answer to the original color of the Moon. It has been suggested that the Moon may have originated as a reddish body, due to the presence of iron oxide (rust) in its surface rocks. However, over time, the Moon has been exposed to various processes that have altered its surface, including impacts, space weathering, and volcanism. These processes have likely contributed to the Moon's current appearance, which is characterized by a range of colors including gray, white, and light brown.