茜色[akaneiro] madder red
暗褐色[ankasshoku] dark brown
暗色[anshoku] dark colour
暗赤色[ansekishoku] dark red
異色[ishoku] singular (esp. artist, artwork)

からすの濡れ羽色[karasunonurebairo] glossy black (hair)
烏羽色[karasubairo] glossy black
炎色[enshoku] flame (color, colour)
鉛色[namariiro] lead colour
鴬色[uguisuiro] greenish brown

愚鈍[gudon] stupidity
神経の鈍い[shinkeinonibui] insensitive
鈍い[osoi] slow
鈍化[donka] becoming dull
鈍角[donkaku] obtuse angle

鈍感[donkan] thickheadedness
鈍間[noroma] blockhead
鈍器[donki] blunt weapon
鈍行[donkou] ordinary train
鈍臭い[donkusai] slow (opposite of fast)