塩濃度[ennoudo] salt concentration
濃やか[komayaka] friendly
脂っ濃い[aburakkoi] greasy
濃い[koi] deep (colour)
濃褐色[noukasshoku] dark brown

濃厚[noukou] density
濃紺[noukon] dark blue
濃縮[noushuku] concentration (of a solution)
濃青色[nouseishoku] dark blue
濃淡[noutan] light and shade

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