Heavy Float Forest

Old English hefig, weighty — cognate with heave. Used as a color modifier since at least the seventeenth century to indicate weight in saturation as much as value: heavy with pigment, heavy-bodied. In the engine's adjective grid, heavy sits alongside deep and plush in the dark-and-saturated quadrant. Closer to a fabric description than a pure value word.

Old English flotian, to-move-on-water-surface. As a color modifier, float implies a buoyant-and-untethered-and-drifting quality, the visual register of lotus-pond-and-petal-on-river-float hand-buoyant-and-untethered-and-drifting lotus-pond-and-petal-on-river-and-paper-lantern floated-and-buoyant-and-untethered-and-drifting surfaces under lotus-pond-and-petal-on-river-and-paper-lantern Heian-and-Edo-and-Yangtze still-water-light. Sits at the modifier-and-mood end of the grid, parallel to drift and hover in usage.

The dense canopy of a temperate or tropical woodland — oak, beech, pine, eucalyptus, mahogany — wherever leaves close above to filter the light below. Forest green refers to the average reflectance of a healthy mid-summer canopy seen from below: a saturated, slightly muted green with the matte finish of layered chlorophyll. Deeper than fern, cooler than olive, with the ecological weight of a word that has named every wooded biome on Earth.