The statue can change to any color it just depends.It might change to a dark brownish black color or a dirty darkish green color.
gray
gray
brown
The outside skin of the Statue of Liberty is made of copper. When it was first made it was the color of a penny. Over time the copper reacts with the water in the air to formal compounds that are green-blue in color.
The original color of the Statue of Liberty was copper. The Statue of Liberty turned green because the weathering oxidized the statue.
The Statue of Liberty was brown, copper colored.
A color of a penny as it was made of copper.
copper
The statue of liberty was copper-colored when she was new. A patina formed over her as she aged due to exposure.
There is a thin copper sheeting over the iron frame of the statue. The copper changes color due to the sea air from a copper color to a green. That is a chemical reaction when the salt in the sea air reacts to the copper.
Oxidation is what is seen in on Lady Liberty. If you want to be even more specific, the color of Lady Liberty is verdigris. Other cases of oxidation can be seen if you look at pennies in a wishing well.
Gold, as it was made of copper
. The Statue of Liberty is clad in copper, which corrodes to a green color
Copper (brownish)
chemical - due to copper contact with oxygen copper oxide