As applied to flue-cured tobacco, color symbols are L-lemon, F-orange, FR-orange red, R-red, V-greenish, K-variegated, KR-variegated red or scorched, G-green, GR-green red, GK-green variegated (may be scorched), GG-gray green, KL-variegated lemon, KF-variegated orange, KV-variegated greenish, KM-variegated (scorched) mixed, KD-variegated dark red, and LL-whitish-lemon.
7 C.F.R. §29.1007