$\color{#41424C}\rule{639px}{2px}$

$\colorbox{f99dbc}{trying}$ - $$\colorbox {color} {text\,text}$$

$\textcolor{fea166}{mamão\,papaya}$ - $$\textcolor {color} {text\,text}$$

$\color{#FFFFF4}\rule{639px}{2px}$- inline equation (for the coloured divider) - \color{color}\rule{639px}{2px}

$\color{#FFFDD0}\rule{639px}{2px}$- inline equation (for the coloured divider) - \color{color}\rule{639px}{2px}

“\;” for space between the words