after the updating of texlive it doesn't compile
\documentclass[10pt,a4paper]{book}
\usepackage{graphicx}
\usepackage{xcolor}
%\definecolor{light-blue}{rgb}{0.8,0.85,1}
\begin{document}
\pagecolor{black}
ciao
\newpage
\pagecolor{white}
ciao
\end{document}
