What is its in French?

Answer 1

Assuming you mean the possessive pronoun "its" (not the contraction "it's")....

The words "son," "sa," and "ses" are possessives that could correspond to "his," "her," or "its." Note that in English we choose according to the gender of the possessor. The man's ... whatever it is that he has... is his. The woman's something or other is her something or other. In French, his or her is son if the thing possessed is gramatically masculine, sa if feminine, ses if plural.

So... the chameleon can change ITS color. In English it is neuter because we don't refer to a non-person lizard as "he" or "she." In French, le caméléon peut changer SA couleur because the word for color is feminine.

HOWEVER, if you mean "it's" as a contraction for "it is," then "c'est" in French.

Answer 2

"its" in French can be translated as "son" (masculine), "sa" (feminine), or "ses" (plural).