Andrew Gabriel wrote:

In theory you can get the new colours now, and you are allowed to
use them. In practice, I've yet to see anyone supplying them --

RS have been selling what they call 'harmonised colours' since the start
of the current catalogue. Look up (for example) SKU 468-1912 on the web
site.

but if you just ask for a drum of cable without specifying, you get
the old colours).

My experience too. Everybody wants to clear their old stock first.

--
Andy