紅 (Kanji for dark lipstick red color)

along with 朱（vermilion), this is one of 2 color words for colors that don't exist in English.

Unfortunately, you need this for 2 fairly common words: lipstick and tea.

Onyomi

KOU	Doesn't my COLON look better with lipstick on it?

Dark red lipstick is a craft women use to tie up men like string.

べに	dark red color ★☆☆☆☆

口紅(くちべに)

lipstick ★★★☆☆ KUNKUN
口 (mouth) + 紅 (dark lipstick red color) = 口紅 (lipstick)

紅葉(もみじ)

fall colors ★☆☆☆☆ FP
紅 (dark lipstick red color) + 葉 (leaf) = 紅葉 (fall colors)

fall colors; fall leaves

紅茶(こうちゃ)

black tea ☆☆☆☆☆
紅 (dark lipstick red color) + 茶 (tea) = 紅茶 (black tea )