So, the trick to force scribus to embed (the correct) profile is to choose PDF/X as the output format. Since no ready-to-follow answer has been posted I'll try to answer the question myself. Here are the settings I choose for the test SVG in Scribus (1.5.1). 2 ECI profile (downloaded here, saved in /usr/share/color/icc/ISOcoated_v2_eci.icc) (the boxes being black in browsers is as expected). It contains two boxes with colors bound to the ISOcoated v. Is there any appropriate one? It seems, Uniconvertor is no alternative, because there is no way to specify the ICC-profile, is this statement correct? It is also highly preferable to do the SVG to EPS/PDF conversion in a command-line tool. Even being very careful (avoiding gradients, shades etc.) doesn't help to make Scribus (both 1.4.2 and 1.5.1) render big SVG files correctly: some things get messed up.Is the outlined approach valid in terms of bringing the desired outcome? grep -ia icc doesn't yield any hit for the resulting PDFs (tested with Scribus 1.4.2 and 1.5.1).go to 'Save as PDF' and before clicking 'Save' choose 'Color' → '.choose the right ICC-profile in 'Document Setup' → 'Color Management'.when assigning colors to objects first go to the CMS tab and choose the right profile.get the ICC-profile your prospective printing centre recommends and link it in Inkscape ('Document Properties' → 'Color Management').The main problem is that Inkscape is not able to export ICC-profile-aware EPS/PDF files.

So, the task is basically to make a print-ready EPS/PDF for some vector art prepared in Inkscape with some guarantee that the colors are not going to be messed up when printed. I realize similar questions have been asked here and there, but I'm still a bit confused.

Inkscape eps vector