Le Historie be Babar was first published in 1932, or 79 years ago, while it's author, Jean de Brunoff, passed away in 1937, or 74 years ago. Under European and French Copyright Law, using either the 70 year limit on corporate owned works, or the 70 years past the death of the author, Babar as a character, along with Celeste and the others, ARE Public Domain for The EU, Canada and other Commonwealth Countries.
In the United States, The Story of Babar was published in 1934, 77 years ago, and renewed by Random House Inc., in 1961. This makes Babar a copyright protected character in the US until 2027.
There you go.