In article , ARW
writes
On 08/04/2018 18:16, Jim K wrote:
Clive Arthur Wrote in message:
On 08/04/2018 14:02, Jim K wrote:
ARW Wrote in message:
On 08/04/2018 11:42, Jim K wrote:
If you're up above the clouds its no. 2...

It's still blue if you are below the clouds.


-- Adam


Not at night.

Do things lose their colour when there is no light?
Yes.


So what colour is a blue football in a dark room?

It has no colour - which we call black.
--
bert