Forest green takes its most famous historical form as "Lincoln green" — the colour of Robin Hood's clothing in English folklore. Lincoln (England) was a centre of green dye production in the medieval period. The colour carries deep associations with the English landscape, the "greenwood," and the romantic notion of outlaws living freely in the forest.

Sheltering, natural, and independent. Forest green is the colour of cover — the dappled shade under a canopy that both hides and protects. Associated with the wild, the natural world outside human control, and the romantic freedom of living close to the land. More complex than park-green, it has depth and shadow.

Robin Hood's Lincoln green is perhaps the most culturally loaded use of this colour — it became the colour of the English outlaw tradition, of resistance to authority, and of the "merry men" living outside Norman law. Military camouflage greens derive from the same practical logic — matching the colour of the forest environment. The British Army's "Rifle Green" uniform (from the Napoleonic Wars) was specifically designed to be less visible in woodland.