1.
rouge, lipstick, red cosmetic
A red cosmetic applied to the lips or cheeks. Traditionally made from safflower petals. In modern use, often refers to lipstick.
Usage
The phrase 紅をさす (apply rouge) is the classic collocation. As a color, 紅 has a more traditional, literary feel than 赤 (red). It appears in many compounds such as 紅花 (safflower), 紅鮭 (sockeye salmon), and 口紅 (lipstick).
Forms
The kanji 紅 can also be read as くれない, which is a more poetic reading for the crimson color.