Meaning
紅 means crimson, deep red, or scarlet — the saturated red of a blazing autumn sky, traditional Japanese lacquerware, or a field of blooming safflowers. This is a different shade from the everyday 赤 (あか). While 赤 covers general red (a stoplight, an apple), 紅 leans toward elegance and depth of color: the red of ceremony, poetry, and tradition.
The character has two components: the radical 糸 (いと), meaning "thread" or "silk," on the left, and 工 (こう), meaning "work" or "craft," on the right. This structure reflects the ancient practice of dyeing silk threads with red pigment — a central craft in Japanese textile culture for centuries. The dye came historically from the safflower plant (紅花), used both in fabric and as a cosmetic. The connection to silk and craft is embedded directly in the character's form.
紅 has 9 strokes and belongs to the Jōyō kanji (常用漢字) list for general use in Japan. It is taught at the secondary school level (grade 8) and appears frequently in literary writing, seasonal vocabulary, traditional arts, and everyday expressions like ordering tea.
Readings
On'yomi (音読み) — Chinese-derived readings
紅 has two on'yomi readings: コウ and ク. The reading コウ is by far the more common of the two, appearing in a wide range of compound words. It is the reading you will see most often in daily life and written Japanese.
コウ is used in most formal and common compound words:
- 紅茶 (kōcha) — black tea; literally "red tea," named for the reddish-amber color of brewed tea
- 紅白 (kōhaku) — red and white; a ceremonially significant color pairing in Japanese culture, used at weddings, New Year's, and celebrations
- 紅潮 (kōchō) — blushing, flushing red in the face
- 紅葉 (kōyō) — autumn foliage, fall colors
ク appears in fewer words and tends to occur in more formal or literary expressions:
- 真紅 (shinku) — deep crimson, vivid scarlet; an intensified form of red
- 紅一点 (kō itten) — the one woman in an otherwise all-male group; a poetic phrase borrowed from a Chinese poem about a single red flower among green leaves
Kun'yomi (訓読み) — Native Japanese readings
紅 has two kun'yomi readings: べに and くれない. Both convey the idea of a rich red or crimson, but they appear in quite different contexts.
べに is the practical, everyday reading, especially associated with cosmetics and traditional dyeing:
- 口紅 (kuchibeni) — lipstick; literally "mouth crimson," one of the most common words using this reading
- 紅色 (beni-iro) — crimson color, red hue
- 紅花 (benibana) — safflower, the traditional source of red dye in Japan
くれない is a poetic and literary reading with a long history in classical Japanese poetry (和歌, waka). It carries an almost aesthetic, refined quality and is often used when describing the color of flowers, autumn leaves, lips, or a beautiful sky. This reading appears in traditional song lyrics, classical literature, and artistic contexts far more often than in everyday speech.
- 紅 (kurenai) — crimson; used as a standalone word in poetic contexts
- 紅の… (kurenai no…) — of crimson…; a poetic modifier used to describe flowers, cloth, or the sky
Common Words & Compounds
紅 appears across a wide range of compound words — everyday life, nature, tradition, and culture. Learning these compounds helps you recognize the kanji in context and builds reading fluency naturally.
Everyday Vocabulary
- 紅茶 (kōcha) — black tea; the most familiar word in this group. Ordered at cafés and drunk at home, this is often the first word learners encounter with 紅
- 口紅 (kuchibeni) — lipstick; a compound combining 口 (mouth) and 紅 (crimson)
- 紅色 (beni-iro) — crimson, scarlet; used when describing a specific shade of red
Nature & Seasons
- 紅葉 (kōyō) — autumn foliage, fall colors; also read 紅葉 (momiji) when specifically referring to Japanese maple leaves
- 紅花 (benibana) — safflower; the plant historically used to create traditional red dye in Japan
- 紅梅 (kōbai) — red plum blossom; a classic symbol of early spring in Japanese culture
Traditional & Cultural Terms
- 紅白 (kōhaku) — red and white; an auspicious color combination used at celebrations, ceremonies, and the famous NHK New Year's music program
- 真紅 (shinku) — deep crimson, pure scarlet; used for emphasis when something is especially vivid red
- 紅海 (kōkai) — the Red Sea; a geographical proper noun using the color meaning directly
Expressive & Figurative Terms
- 紅潮 (kōchō) — blushing, flushing; literally "red tide," used to describe the reddening of the face from embarrassment or excitement
- 紅一点 (kō itten) — the sole woman in a group; a culturally rich expression with poetic roots
- 紅顔 (kōgan) — rosy cheeks, a youthful complexion; often appears in literary descriptions
Example Sentences
毎日紅茶を一杯飲みます。
Mainichi kōcha wo ippai nomimasu.
I drink one cup of black tea every day.
彼女は赤い口紅を塗っていた。
Kanojo wa akai kuchibeni wo nutte ita.
She was wearing red lipstick.
秋になると、山の紅葉がとてもきれいです。
Aki ni naru to, yama no kōyō ga totemo kirei desu.
When autumn comes, the fall foliage in the mountains is very beautiful.
恥ずかしくて顔が紅潮した。
Hazukashikute kao ga kōchō shita.
I was embarrassed and my face flushed red.
真紅のバラを一本プレゼントしました。
Shinku no bara wo ippon purezento shimashita.
I gave one deep crimson rose as a gift.
お正月には紅白のもちを食べる習慣があります。
O-shōgatsu ni wa kōhaku no mochi wo taberu shūkan ga arimasu.
There is a custom of eating red and white rice cakes at New Year's.
夕日に染まった紅の空が美しかった。
Yūhi ni somatta kurenai no sora ga utsukushikatta.
The crimson sky dyed by the setting sun was beautiful.
そのチームでは山田さんが紅一点として活躍しています。
Sono chīmu de wa Yamada-san ga kō itten to shite katsuyaku shite imasu.
In that team, Ms. Yamada is active as the only woman among men.
寒い冬の朝は、温かい紅茶が一番です。
Samui fuyu no asa wa, atatakai kōcha ga ichiban desu.
On cold winter mornings, warm black tea is the best.
Memory Tip
Picture a traditional Japanese silk-dyeing workshop. The left side of 紅 is the radical 糸 (いと) — silk thread. The right side is 工 (こう) — craft or work. Together they describe the act of dyeing thread: an artisan lifting silk from a steaming vat of red dye made from safflower petals. The resulting color was once so prized it was reserved for nobles and samurai. 工 (craft) + 糸 (thread) = a deep, precious red.