The technical term for that green is OG107, or olive green 107.
https://en.wikipedia.org/wiki/OG-107
Dark olive green is close, and some sites claim the hex code is #556B2F
https://www.color-hex.com/color/556b2f
I would reduce the saturation a bit, and even add some slight CIE noise to the final texture.
I prefer #5b6942 as a bit less saturated, but it really depends on the context.
https://en.wikipedia.org/wiki/OG-107
Dark olive green is close, and some sites claim the hex code is #556B2F
https://www.color-hex.com/color/556b2f
I would reduce the saturation a bit, and even add some slight CIE noise to the final texture.
I prefer #5b6942 as a bit less saturated, but it really depends on the context.