If the image has indexed colours (which SVG's often have as well, unless you use gradients), using indexed .png's gives you huge savings. I have an image on my

If the image has indexed colours (which SVG's often have as well, unless you use gradients), using indexed .png's gives you huge savings. I have an image on my blog (1920x1080), which, as .jpg uses 272kb, but as indexed .png only 76kb, which is 27% the size. I'm using ~16 different colors, I believe. And the .jpg in this comparison is pretty hard compressed already (quality level 60 or 75, iirc). To generate this .png I use Krita, but PS should be able to do so as well. GIMP can do it too, but if you start with a 24bit graphics and need to reduce colors as first step, I got bad results with GIMP (may have been me, though). Krita did a better ootb-job for me here.