\definecolor{green}{cmyk}{1.0,0,0.6,0} % KIT 100% green
\definecolor{lightgreen}{cmyk}{0.7,0,0.42,0} % KIT 70% green

\setbeamercolor{background canvas}{bg=white}
\setbeamercolor{normal text}{fg=black}
\setbeamercolor{alerted text}{fg=green}
\setbeamercolor{section in toc}{fg=green}
\setbeamercolor{itemize item}{fg=lightgreen}
\setbeamercolor{itemize subitem}{fg=lightgreen}
\setbeamercolor{itemize subsubitem}{fg=lightgreen}
\setbeamercolor{enumerate item}{fg=lightgreen}
\setbeamercolor{enumerate subitem}{fg=lightgreen}
\setbeamercolor{enumerate subsubitem}{fg=lightgreen}