the.com/sage green

means A muted, grayish-green shade that takes its name from the dusty-leaved sage plant.

from Named directly after the herb — sage leaves have that soft, silvery-green color, and English speakers borrowed the plant's hue for the color word. 'Sage' the herb traces back through French and Latin 'salvia,' related to 'salvere' (to be in good health), since the plant was long valued as medicine — the same root, fittingly, that gives 'sage' meaning wise. The color term itself is a much later, simple leap: if it looks like the leaf, call it by the leaf's name.