Which paint colour is this?

[Norajean]

Or near enough?

Edward Bulmer Invisible Green is similar. I've never used it in real life though, just seen it online, so can't really comment on what it would look like in a photo outside

Try Graham and Brown. I can't see that colour but they have a wide range of greens.
I used their Equador green on my front door and it's lovely, and went on well.

Possibly farrow and balls archived 'verdigris green'

Dulux colour picker suggested crushed pine 1 or Emerald Delight 2.

https://www.littlegreene.com/green-verditer?___store=lg_gb&refSrc=12590&nosto=nosto-page-product-may-like

I think I've found one very similar 🙌

Knock on the door and ask or is that too weird/daring?