https://www.thehappychickencoop.com/chickens-that-lay-blue-eggs/
Scroll down on that site to see the list of 8 breeds of chicken that can lay blue eggs.
No lock down, current humidity 31%, turner on, hatched during the night but I still would not recommend these conditions for optimal lockdown.
Sweetgrass poult
Lay the egg down so that the side where the air cell is the biggest is up. That is where the chick will internally pip. If it has already internally pipped. lay it down so that the internal pip is up.