Grenade Can odd colour

[Sean Dunnage]

I found this 1943 dated Hand Grenade Ammo Can in our shelving units at work along with another 25pdr can this week. What struck me about the Grenade can is the sticker and colours are still very clear.
My curiosity is the colour of the can. A bright green! It's obviously original as it had a 1944 inspection sticker for the hand grenades still attached to the top inside of the lid(it's since been destroyed by rain on the way home).
Has anyone got an idea of what colour this is?
The red stenciling on the front is about the only marking that isn't original I believe.
I am also looking for a replacement latch if anyone has one or can point me in a direction.

Sean