\documentclass{beamer}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{lmodern}
\usepackage{graphicx}
\usepackage[frenchb]{babel}
\usepackage{hyperref}
\usepackage{pgf}
\usepackage{eurosym}
\DeclareUnicodeCharacter{20AC}{\euro}
\usepackage{textcomp}
\usepackage{xcolor}
\usepackage{pgfplots}
\usepgfplotslibrary{dateplot} % Needs TeXlive 2013 ...

\setbeamertemplate{footline}{}
\setbeamertemplate{navigation symbols}{}

% Tetaneutral.net logo
\definecolor{ttnn1}{rgb}{.695,.645,.551}
\definecolor{ttnn2}{rgb}{.906,.839,.730}
\newcommand{\ttnn}{\Huge\color{ttnn1}{\textbf{teta}}\color{ttnn2}{neutral}\color{ttnn1}{.net}}

\begin{document}
\ttnn{}
\end{document}
