Here is the TL:DR version of the official colors and palettes documentation on the Nord theme. This is a quick and dirty page to help theme implementers copy and paste from the official color pallette page.
On compatible browsers (Chrome and Firefox tested), clicking on the color text will automatically copy it on the clipboard. This requires JavaScript enabled, but all CSS/JS code is built-in: there are NO extrenal dependencies. It should already work on most browsers with an adblocker that is not set to disable inline JS altogether.