$n$-dervations of Lie color algebras

The aim of this article is to discuss the $n$-derivation algebras of Lie color algebras. It is proved that, if the base ring contains $\frac{1}{n-1}$, $L$ is a perfect Lie color algebra with zero center, then every triple derivation of $L$ is a derivation, and every $n$-derivation of the derivation algebra $nDer(L))$ is an inner derivation.