Lumiere is a kind-hearted, charismatic, yet rebellious servant of the Beast. Incredibly social and hospitable towards all of whom he meets, Lumiere has a habit of disobeying the firm rules of his antisocial master, frequently resulting in controversy. Nevertheless, after Belle, he is arguably the Beast's closest friend, as the Beast often turns to Lumiere for advice. His free-spirited and rebellious personality often puts a severe strain on his friendship with Cogsworth, whom prefers to abide strictly by his master's rules as to avoid any trouble. As shown many times in the film series, however, Lumiere values Cogsworth like a brother, and vice versa.
Credit: Disney Wikia