Print Background colours in Chrome
You adjust in the browser, whether the background colors and images are printed. See your browsers printing options.
Google Chrome offers this feature starting from version 26 (march 2013).
Also starting from version 17, Chrome allows changing the background print behavior programmatically by using -webkit-print-color-adjust:exact; in the element CSS to print the background.
Gordon's answer is great, but for people whose CSS skills are rusty, here's a more complete example.
Put the following in your document's <head> section.
<style type="text/css">@media print { body { -webkit-print-color-adjust: exact; } }</style>By the way, although Chrome/Chromium's print dialog now has a Background graphics checkbox, it only seems to work if you do not click Print using system dialog (observed with Chromium in Linux).
Chrome > Print (cmd P) > click More Settings > Options: check Background graphics
