Named after a kitchen herb
Sage is a gray green named after the dried leaves of the sage plant, Salvia officinalis. Old color wheels for painters treated it as a mix of two mixed colors. In that system, sage is equal parts citron and slate. William J. Miskella used this kind of scheme in his 1928 handbook Practical Color Simplified.
Where #BCB88A comes from
The code is the swatch in the Wikipedia article on sage. It was worked out with a formula that turns a paint mix into screen colors. The article warns that these screen colors are much paler than real mixed paint, so sage paint is often darker. The New Zealand paint maker Resene sells its own Sage as #9EA587, which is grayer and a little darker.
Sage in shops
Apple sold its iPhone 17 in a color it called sage. For other soft greens, compare laurel green and asparagus.

