A question of colour and mixing….

You thought this was some kind of Britain first post didn’t you!!

Two questions:

Could someone advise me on which colour this is please?


Secondly, my primer is 3:1:1. My mixing cup has the numbers for paint and hardener but not thinner. On the thinner scale it has 5,10,15,20 etc rather than another number 3 as per below. Therefore, I’m unsure on how to make sure I’ve the right amount thinner?
Thanks

Is there no colour code on the vehicle ? Not sure where it is on D1, but I would check the slam panel or door frames.

It’s not mine mate. It’s the colour I’d like to go with though

Go to a paint shop & look through the charts.
You may find this is not a landrover colour