Because the animators colored him grey. Simple as that. If there were specific reasons for that color choice they've evidently been lost to history however it's perfectly reasonable to assume they couldn't make him brown because that was King Louie's color & they couldn't make him black because that was Bagheera's color.
Baloo's color in The Jungle Book is likely a creative choice by the animators to make him visually distinct and recognizable. In the original book by Rudyard Kipling, Baloo is described as a sloth bear, which typically have dark fur ranging from black to brown. The decision to depict him as gray in the animated versions was probably made for visual appeal and animation purposes.
The name of the bear (who is a sloth bear) in The Jungle Book is Baloo.
Phil Harris voiced Baloo in Jungle Book. He died in 1995
Baloo
Baloo the bear taught Mowgli the law of the jungle in The Jungle Book. Baloo emphasized the importance of respect and harmony with nature and other animals.
Baloo the bear from jungle book
Baloo is Bear from Jungle Book and mean Bear on Persu language
The Jungle Book
Baloo was the name of the big brown bear in the Jungle Book.
In the original story The Jungle Book the illustrations of characters like Baloo the bear were done by John Lockwood Kipling, who was the father of Ruyard Kipling. There have been other artists that have illustrated Baloo, but Lockwood is the original artist.
Baloo. The big brown bear..:)
The Second Jungle Book Mowgli and Baloo - 1997 is rated/received certificates of: Australia:PG France:U Germany:6 Iceland:L Spain:T USA:PG
The main heroes are: Mowgli, Baloo, and Bagheera.