CERN logo

Unofficial logo of CERN to be used for creative and fun variations only! Please do NOT use for official publications!
Note that to run this code, you need to install the classico font (which is the LaTeX-equivalent for Optima). Alternatively, you can include *.ttc font files and compile with XeLaTeX. A zip file with a full example that works on Overleaf is provided at the bottom of this post.

Edit and compile if you like:

% !TEX TS-program = xelatex
% Author: Izaak Neutelings (June 2023)
% Description:
%   Unofficial logo of CERN to be used for creative and
%   fun variations only! Do NOT use for official publications!
% Instructions:
%   You may need to install some fonts to compile this document.
%   - Optima font for the "CMS" label (LaTeX equivalent is "Classico"
%   - Helvetica for the "extra" text
%   - Palatino for CMS TDR style
%   Below are instructions to get this working with either pdfLaTeX or XeLaTeX
% Sources:
%   https://tikz.net/cms_logo/
%   https://design-guidelines.web.cern.ch/guidelines/logo
%   https://design-guidelines.web.cern.ch/downloads
\documentclass[border=0.5pt,tikz]{standalone}
\usetikzlibrary{calc}

% CMS FONTS
\usepackage{iftex} % for \ifpdftex
\ifpdftex % if compiled with pdfLaTeX
  % https://tug.org/FontCatalogue/urwclassico/
  % https://tug.org/fonts/getnonfreefonts/
  % https://tug.org/fonts/fontinstall.html
  % Instructions for installation on macOS (Tex Live):
  % 1) Install Classico (equivalent of Optima):
  %   curl --remote-name https://www.tug.org/fonts/getnonfreefonts/install-getnonfreefonts
  %   sudo texlua install-getnonfreefonts
  %   sudo getnonfreefonts --sys classico
  \message{^^JCompiling with pdfLaTeX}
  \usepackage[T1]{fontenc}
  \usepackage{classico} % URW Classico ~ Optima for "CMS" label
  \newcommand*{\optima}{\classico}
\else % if compiled with XeLaTeX
  % Instructions:
  %   1) Ensure the paths below to the Optima.ttc files are correct
  %   2) Compile with XeLaTeX
  \message{^^JCompiling with XeLaTeX}
  \usepackage{fontspec} % needed for newfontfamily
  \usepackage[T1]{fontenc} % needed for palatino (call after fontspec)
  \newfontfamily{\optima}{Optima}[ % Optima for "CMS" label
    Path = ./fonts/, % folder with Helvetica.ttc file (relative to CMS_logo.tex)
    %Path = /System/Library/Fonts/, % macOS system standard
    UprightFeatures = {FontIndex=0},
    BoldFeatures = {FontIndex=1},
    ItalicFeatures = {FontIndex=2},
    BoldItalicFeatures = {FontIndex=3},
    BoldFont = *,
    ItalicFont = *
  ]
\fi

% CMS COLORS
\definecolor{colbkg}{RGB}{12,74,142} % CERN blue
%\colorlet{myred}{red!90!black}

% CMS STYLES
\tikzset{
  line/.style={colbkg,double=#1,line width=1.5,double distance=1.8},
  line/.default=white,
}

\begin{document}


% CERN LOGO
\begin{tikzpicture}[x=2cm,y=2cm]
  
  % OFFICIAL LOGO
  %%%% https://cms-docdb.cern.ch/cgi-bin/PublicDocDB/ShowDocument?docid=3045
  %%%\node[inner sep=0,outer sep=0] at (0,0) {
  %%%  \includegraphics[width=40mm] %,clip,trim={0mm 0mm 0mm 0mm}]
  %%%    {test/CERN_LogoBadge.pdf}
  %%%};
  
  % DETECORS LAYERS
  \def\rL{0.6205}
  \def\rxR{0.622}
  \def\ryR{0.633}
  \def\angA{190}
  \def\angB{89.8}
  \def\angC{-39}
  \def\angD{13}
  \def\angE{-11}
  \coordinate (L) at (133.5:0.224);
  \coordinate (R) at (-16:0.127);
  \begin{scope}[opacity=1]
    \clip (-1,-1) rectangle (1,1);
    \fill[colbkg] (-1,-1) rectangle (1,1);
    
    % RIGHT CIRCLE
    \begin{scope}
      \clip %draw[green]
        (R)++(-1.1*\rxR,-1.1*\rxR) |- ($(R)+(-45:{0.05*\rxR} and {0.05*\ryR})$)
        --++ (138.3:{1.1*\rxR} and {1.1*\ryR}) |- ($(R)+(1.2*\rxR,1.09*\rxR)$) |- cycle;
      \draw[line]
        (R) ellipse({\rxR} and {\ryR})
        ($(R)+(\angE:\rxR)$)
          to[out=89+\angE,in=-86+\angE]++ (94.1+\angE:1.3*\rxR);
    \end{scope}
    
    % LEFT CIRCLE
    \clip %draw[red]
      (L)++(-1.1*\rL,1.1*\rL) rectangle++ (0.7*\rL,-2.292*\rL)
      (L)++(-0.5*\rL,1.1*\rL) rectangle++ (2.4*\rL,-3.1*\rL);
    \draw[line]
      (L) circle(\rL)
      ($(L)+(\angA:\rL)$)
        to[out=91+\angA,in=-84+\angA]++ (95+\angA:0.68) % truncate with clip
      ($(L)+(\angB:\rL)$) --++ (\angB-90:1.6)
      ($(L)+(\angC:\rL)$)
        to[out=\angC-90,in=\angC+88.5]++ (\angC-93.4:1.2)
      ($(L)+(\angD:\rL)$)
        to[out=\angD-88,in=\angD+90]++ (\angD-90.1:1.4);
    \draw[line] % right circle overlapping left circle on top
      ($(R)+(100:{\rxR} and {\ryR})$) arc(100:40:{\rxR} and {\ryR});
    
    % CERN
    \node[white,font=\optima,xscale=2.25,yscale=2.18]
      at ($(L)+(130:0.018)$) {CERN};
    
  \end{scope}
  
\end{tikzpicture}


\end{document}

Click to download: CERN_logo.tex • CERN_logo.zip • CERN_logo.pdf
Open in Overleaf with fonts included (change the compiler to XeLaTeX): CERN_logo.zip