myuniversalbox[background_color=, frame_color=, borderlinewidth=, arc_radius=, separation_x=, separation_y=]{some text}.

%------------------------- %
documentclass{book}
%------------------------- %
usepackage[english]{babel} %
usepackage{newtxtext} %
usepackage{colortbl}
usepackage{graphicx} %
%
setlength{unitlength}{1mm}
%
definecolor{DarkRed}{rgb}{0.45,0.00,0.00}
definecolor{LightGrey}{rgb}{0.96,0.96,0.96}
definecolor{LightPink}{rgb}{1.00,0.92,0.92}
definecolor{LightYellow}{rgb}{1.00,1.00,0.85}
definecolor{PaleBlue}{rgb}{0.92,1.00,1.00}

newcommand{redpaleblueboxtwofour}[1]{ %
 setlength{fboxrule}{1.25pt}
  {setlength{fboxsep}{2.4pt}
    hspace{-4pt}fcolorbox{DarkRed}{PaleBlue}{#1}}}

newcommand{redlightyellowboxsixeight}[1]{ %
 setlength{fboxrule}{1.25pt}
  {setlength{fboxsep}{6.8pt}
    hspace{-4pt}fcolorbox{DarkRed}{LightYellow}{#1}}}

newcommand{redlightpinkthreesix}[1]{ %
 setlength{fboxrule}{0.75pt}
  {setlength{fboxsep}{3.6pt}
    hspace{-4pt}fcolorbox{DarkRed}{LightPink}{#1}}}

newcommand{redlightgreyboxfoureight}[1]{ %
 setlength{fboxrule}{0.75pt}
  {setlength{fboxsep}{4.8pt}
    hspace{-4pt}fcolorbox{DarkRed}{LightGrey}{#1}}}


begin{document}

noindent hspace{50pt}fbox{Some ordinary text}

vspace{4pt}
noindent hspace{50pt}redpaleblueboxtwofour{Some ordinary text}

vspace{4pt}
noindent hspace{50pt}redlightyellowboxsixeight{Some ordinary text}

vspace{4pt}
noindent hspace{50pt}redlightpinkthreesix{Some ordinary text}

vspace{4pt}
noindent hspace{50pt}redlightgreyboxfoureight{Some ordinary text $+hspace{1.2pt}x^{hspace{0.6pt}2}$}

end{document}