CSS filter at html root
HTML
<div>Text</div>
CSS
div {
background-color:orange;
color:black;
}
html {
background-color:orange;
min-height:100%;
-webkit-filter:invert(100%);
}
<div>Text</div>
div {
background-color:orange;
color:black;
}
html {
background-color:orange;
min-height:100%;
-webkit-filter:invert(100%);
}