褐
カツ
brown, woollen kimono
JLPT1 G7 S13 F2186
(Shinjitai) As per 曷# (cut off) + 衣 clothing → coarse, dark cloth cut to make clothing → *coarse cloth* → *brown*. *Dark blue* also derives from the primary meaning, the clothes of low-ranking retainers in ancient Japan having been cut from coarse blue cloth.
[Full Kanji Etymology List]