Change page body color in Oblique

Firstly install our CSS plugin:  Advanced CSS Editor then go to Appearance->Customize->Advanced CSS Editor and add the following:

.single-post-svg{
fill: #761e22 !important;
}
  
.hentry{
background: #761e22;
}

You could generate a custom hex color here:  http://www.hexcolortool.com/, save your changes and you're done!