A logo on top of a colored titlepage?

Question

i want to place a logo on a colored titlepage, but google search and manual reading did not helped me out. May some of the experts help me out?

Here is my coding-sample, inspired by the "Heidelberg" theme:

\documentclass[12pt,demo]{scrreprt}
\usepackage{geometry}
\usepackage{xcolor}
\usepackage{graphicx}
\usepackage[T1]{fontenc}            
\usepackage[utf8]{inputenc}         
\usepackage[ngerman]{babel}            
\usepackage{lmodern}               
\usepackage[onehalfspacing]{setspace}  
\usepackage{lipsum}

\definecolor{titlepagecolor}{cmyk}{1,.10,0,0}
\definecolor{namecolor}{cmyk}{1,.50,0,.10} 
\definecolor{white}{cmyk}{0,0,0,0} 

\begin{document}

\begin{titlepage}
    \pagecolor{titlepagecolor}
    \newgeometry{left=5cm,right=1cm,bottom=1cm} 
    \noindent
    \color{white}
    {\LARGE \textsf{Subject} } 
    \par
    \noindent
    \color{white}
    \makebox[0pt][l]{\rule{1.3\textwidth}{1pt}}
    \par\medskip
    {\noindent \huge\textbf{\textsf{Title}}}
    \par\medskip
    {\noindent\huge\textbf{\textsf{Subtitle} }}
    \par

\vfill

\begin{flushright}
 \includegraphics[scale=0.6]{logo.jpg}
\end{flushright}

\end{titlepage}
\restoregeometry 

\nopagecolor lipsum[1-9]

\end{document}

Answer 1

Something like this ? (Well, maybe not quite…)

\documentclass[12pt]{scrreprt}
\usepackage{geometry}
\usepackage{xcolor}
\usepackage{graphicx}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[ngerman]{babel}
\usepackage{lmodern}
\usepackage[onehalfspacing]{setspace}
\usepackage{lipsum}

\definecolor{titlepagecolor}{cmyk}{1,.10,0,0}
\definecolor{namecolor}{cmyk}{1,.50,0,.10}
\definecolor{white}{cmyk}{0,0,0,0}

\begin{document}

\begin{titlepage}
    \pagecolor{titlepagecolor}
    \newgeometry{left=5cm,right=1cm,bottom=1cm}
    \noindent
\begin{flushright}
\vspace*{-3cm}
 \includegraphics[scale=0.5]{pepe-le-pew1}
 \vspace{2cm}
\end{flushright}
    \color{white}
    {\LARGE \textsf{Subject} }
    \par
    \noindent
    \color{white}
    \makebox[0pt][l]{\rule{1.3\textwidth}{1pt}}
    \par\medskip
    {\noindent \huge\textbf{\textsf{Title}}}
    \par\medskip
    {\noindent\huge\textbf{\textsf{Subtitle} }}
    \par

\vfill%

\end{titlepage}
\restoregeometry

\nopagecolor lipsum[1-9]

\end{document} 

Answer 2

Using Bernard's (+1) subject and title as a start but using a different methodology and fewer packages,

\documentclass[12pt]{scrreprt}
\usepackage{geometry}
\usepackage{xcolor}
\usepackage{graphicx}   
\usepackage{tikz}
\usepackage{tikzpagenodes}


\begin{document}

\begin{titlepage}

\begin{tikzpicture}[remember picture,overlay,shift={(current page.south west)}]
\fill[orange] (0,0)--(\paperwidth,0)--(\paperwidth,\paperheight)--(0,\paperheight)--cycle;
\end{tikzpicture}

\begin{tikzpicture}[remember picture,overlay,shift={(current page.north east)}]
\node[anchor=north east] (0,0) {\includegraphics[width=2in]{pig}};
\end{tikzpicture}

    \noindent
    \color{white}
    {\LARGE \textsf{Piglets} } 
    \par
    \noindent
    \color{white}
    \makebox[0pt][l]{\rule{1.3\textwidth}{1pt}}
    \par\medskip
    {\noindent \huge\textbf{\textsf{Cute pigs}}}
    \par\medskip
    {\noindent\huge\textbf{\textsf{Out and about} }}
    \par




\end{titlepage}



\end{document}

Answer 3

Here is another suggestion using package scrlayer and defining a new layer page style for the title page. This package is part of the KOMA-Script bundle. Note that scrlayer-scrpage, the KOMA package for headers and footers, bases on scrlayer. So if you use scrlayer-scrpage in your document there is no additional package needed. The layers are already in the first run on the disered place.

\documentclass[12pt]{scrreprt}
\usepackage{geometry}
\usepackage{xcolor}
\usepackage{graphicx}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[ngerman]{babel}
\usepackage{lmodern}
\usepackage[onehalfspacing]{setspace}
\usepackage{lipsum}

\definecolor{titlepagebackground}{cmyk}{1,.10,0,0}
\definecolor{namecolor}{cmyk}{1,.50,0,.10} 
\definecolor{titlepagetext}{cmyk}{0,0,0,0} 

\usepackage{scrlayer}
\DeclareNewPageStyleByLayers{titlepage}{%
  titlepage.bg,%
  titlepage.logo%
}
\DeclareNewLayer[
  background,
  contents=\textcolor{titlepagebackground}{\rule{\layerwidth}{\layerheight}}
]{titlepage.bg}
\DeclareNewLayer[
  background,
  mode=picture,
  contents=\putLR{\makebox[0pt][r]{\includegraphics[height=4cm]{example-image}}}
]{titlepage.logo}

\begin{document}
\begin{titlepage}
  \thispagestyle{titlepage}
  \newgeometry{left=5cm,right=1cm}
  \color{titlepagetext}\sffamily
  \begin{flushleft}
    {%
      \LARGE 
      Subject
      \par
    }
    \smash{\makebox[0pt][l]{\rule{1.3\textwidth}{1pt}}}
    \par
    {%
      \huge\bfseries
      Title\par
      Subtitle\par
    }
  \end{flushleft}
\end{titlepage}
\restoregeometry 
lipsum[1-9]
\end{document}

It would also be possible to use an additional layer for the title page text. Then you do not have to change the page geometry for the title page and package geometry can be removed.

\documentclass[12pt]{scrreprt}
\usepackage{xcolor}
\usepackage{graphicx}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[ngerman]{babel}
\usepackage{lmodern}
\usepackage[onehalfspacing]{setspace}
\usepackage{lipsum}

\definecolor{titlepagebackground}{cmyk}{1,.10,0,0}
\definecolor{namecolor}{cmyk}{1,.50,0,.10} 
\definecolor{titlepagetext}{cmyk}{0,0,0,0} 

\usepackage{scrlayer}
\DeclareNewPageStyleByLayers{titlepage}{%
  titlepage.bg,%
  titlepage.logo,%
  titlepage.text%
}
\DeclareNewLayer[
  background,
  contents=\textcolor{titlepagebackground}{\rule{\layerwidth}{\layerheight}}
]{titlepage.bg}
\DeclareNewLayer[
  background,
  mode=picture,
  contents=\putLR{\makebox[0pt][r]{\includegraphics[height=4cm]{example-image}}}
]{titlepage.logo}
\DeclareNewLayer[
  foreground,
  textarea,
  hoffset=5cm,
  width=\paperwidth-6cm,
  contents={%
    \color{titlepagetext}\sffamily
    \begin{flushleft}
      {%
        \LARGE 
        Subject
        \par
      }
      \smash{\makebox[0pt][l]{\rule{1.3\textwidth}{1pt}}}
      \par
      {%
        \huge\bfseries
        Title\par
        Subtitle\par
      }
    \end{flushleft}
  }
]{titlepage.text}

\begin{document}
\begin{titlepage}
  \thispagestyle{titlepage}
  \null
\end{titlepage}
\lipsum[1-9]
\end{document}