Kanji for Colors: 赤 青 白 黒 緑 黄 茶 紫 and When to Add 色

The main kanji for colors are 赤 (red), 青 (blue), 白 (white), 黒 (black), 緑 (green), 黄 (yellow), 茶 (brown, from tea) and 紫 (purple). Four of them become i-adjectives (赤い, 青い, 白い, 黒い), yellow and brown add 色 (黄色い, 茶色い), and green and purple are nouns used with の.

What you need to know

Colour kanji look like a simple vocabulary list until you try to use them in a sentence. Why is it 赤い車 but 緑の車? Why do Japanese people call a green traffic light 青? Why is a loss on a company report written in red and a profit in black, 赤字 and 黒字? This guide answers those questions with twelve colour kanji: the eight basic colours, 色 itself, and grey, gold and silver. For each you get the readings, the grammar pattern it takes, common compounds and the places you will see it, from traffic signals and supermarket labels to news about company results. If you want the kanji 色 in depth, with its idioms, see our separate guide to 色; here the focus is on the colour kanji themselves and how they behave in real sentences.

赤い, 青い, 白い, 黒い are i-adjectives; 黄色い and 茶色い add 色

緑 and 紫 are nouns: say 緑のシャツ, not 緑いシャツ

青 also covers some greens: 青信号, 青りんご, 青葉

赤字 is a deficit and 黒字 a profit, in the news and at work

Colour kanji you see every day

Colour kanji turn up first on the street and in shops. These four everyday words already show the main surprises of the set: green lights are blue, and yellow needs 色.

Four picture cards: a green traffic light called blue, a red light, yellow flowers and a cup of green tea.
Traffic lights, flowers and tea: four colour words you will meet on your first day.
JapaneseRomajiMeaning
青信号ao shingōgreen light (called blue)
赤信号aka shingōred light
黄色い花kiiroi hanayellow flowers
緑茶ryokuchagreen tea

The twelve colour kanji and their readings

Each colour has a kun'yomi used on its own and an on'yomi used in compounds. Learn the colour word first, then one compound.

KanjiColour wordOn'yomiCompound
赤赤 (aka), 赤いseki赤十字 (sekijūji, Red Cross)
青青 (ao), 青いsei, shō青年 (seinen, young person)
白白 (shiro), 白いhaku, byaku白鳥 (hakuchō, swan)
黒黒 (kuro), 黒いkoku黒板 (kokuban, blackboard)
緑緑 (midori)ryoku, roku緑茶 (ryokucha, green tea)
黄黄色 (kiiro), 黄色いkō, ō黄金 (ōgon, gold)
茶茶色 (chairo), 茶色いcha, sa喫茶店 (kissaten, coffee shop)
紫紫 (murasaki)shi紫外線 (shigaisen, UV rays)
色色 (iro)shoku, shiki景色 (keshiki, scenery)
灰灰色 (haiiro)kai灰皿 (haizara, ashtray)
金金色 (kin'iro)kin, kon金曜日 (kin'yōbi, Friday)
銀銀色 (gin'iro)gin銀行 (ginkō, bank)

Grey, gold and silver all add 色 in the same way as yellow and brown, but they behave as nouns: 灰色の雲 (grey clouds), 金色の紙 (gold paper), 銀色の車 (a silver car). In fashion and on product labels you often see katakana instead, such as グレー, ゴールド and シルバー, and many people use グレー in conversation more often than 灰色. Both are correct; the kanji version sounds a little more descriptive or literary.

い, 色い or の? The grammar of colours

Colour words fall into three groups. Getting the group right is the difference between sounding natural and sounding like a textbook translation.

JapaneseRomajiMeaning
白い車shiroi kurumaa white car
茶色いかばんchairoi kabana brown bag
紫のスカーフmurasaki no sukāfua purple scarf
その黒いのをください。Sono kuroi no o kudasai.I'll take that black one, please.
GroupColoursBefore a nounExample
i-adjectivered, blue, white, blackadd い赤い傘 (red umbrella)
色 + いyellow, brownadd 色い茶色い靴 (brown shoes)
noun + のgreen, purple, grey, gold, silveradd の緑の葉 (green leaves)

The first four can also be nouns: 赤が好きです, I like red. To say something is completely that colour, add 真っ (ma) with a sound change: 真っ赤 (makka), 真っ青 (massao), 真っ白 (masshiro), 真っ黒 (makkuro). These take な or の before a noun, as in 真っ赤な顔, a bright red face.

Why green things are sometimes blue

In older Japanese, 青 covered a band of colours from blue to green, and 緑 originally described fresh young shoots. Modern Japanese separates blue and green much as English does, but older words kept 青. That is why fresh vegetables, unripe fruit and young leaves are still called ao.

青 also carries the sense of young and inexperienced: 青年 is a young person, and calling someone 青い can mean they are still green, naive. 顔が真っ青 means someone has gone pale with fear or shock, not literally blue.

JapaneseRomajiMeaning
青りんごao ringogreen apple
青葉aobafresh green leaves
青になったら渡ろう。Ao ni nattara watarō.Let's cross when it turns green. (casual)
顔が真っ青だよ。大丈夫?Kao ga massao da yo. Daijōbu?You've gone pale. Are you OK? (casual)

Colour words in money, work and daily life

Several colour words have meanings that have nothing to do with paint. These are the ones you will meet in news, at work and on forms.

Kanji breakdown of 色, colour, with the compounds 茶色, 黄色 and 灰色 around it.
Brown, yellow and grey all need 色: tea colour, yellow colour and ash colour.
JapaneseRomajiMeaning
赤字akajideficit, loss
黒字kurojisurplus, profit
白紙hakushiblank paper; a clean slate
赤ちゃんakachanbaby (from a newborn's red face)
今年は黒字になりました。Kotoshi wa kuroji ni narimashita.Colleague: This year we made a profit.
計画は白紙に戻りました。Keikaku wa hakushi ni modorimashita.The plan went back to square one.

Mini dialogue: choosing a colour in a shop

JapaneseRomajiMeaning
このシャツ、ほかの色はありますか。Kono shatsu, hoka no iro wa arimasu ka.You: Does this shirt come in other colours?
白と紺と緑がございます。Shiro to kon to midori ga gozaimasu.Clerk: We have white, navy and green. (very polite)
緑のを見せてください。Midori no o misete kudasai.You: Please show me the green one.
こちらです。明るい緑ですね。Kochira desu. Akarui midori desu ne.Clerk: Here you are. It's a bright green.
うーん、もう少し暗い色がいいです。Ūn, mō sukoshi kurai iro ga ii desu.You: Hmm, I'd prefer a slightly darker colour.

Shop staff often use katakana colour names for clothes, such as ベージュ (beige), ネイビー (navy) and カーキ (khaki), alongside the kanji ones. If you do not catch a colour, point and ask この色は何といいますか, what is this colour called? It is a natural question, and staff are used to it from tourists and locals alike.

Look-alikes and writing tips

  • 白 (white) vs 百 (hundred) vs 自 (self): 百 is 白 with a line on top; 自 has three inner spaces.
  • 黒 (black) vs 里 (village): 黒 looks like 里 with two small dots inside the box and four dots of fire below.
  • 青 (blue) vs 清 (clean) vs 晴 (clear weather): 青 sits inside both and gives them the same on'yomi, sei.
  • 緑 (green) vs 録 (record, as in 録音): 緑 has the thread radical 糸, 録 has the metal radical 金.
  • 茶 (tea) vs 菜 (vegetable): both have the grass radical 艹 on top, a reminder that both come from plants.
  • Writing tip: 青 is 8 strokes; the bottom part is 月 in modern print, and the top is like 主 without the dot.

Common learner mistakes with colour words

Colour words feel easy, which is exactly why small errors survive for years. Check yourself against this list.

  • Adding い to every colour. 緑い and 紫い are not words; use 緑の and 紫の.
  • Dropping 色 from yellow and brown. 黄い and 茶い are not used; say 黄色い and 茶色い.
  • Calling a green traffic light 緑. People will understand you, but 青信号 and 青になった are what you will hear.
  • Mixing up 赤字 and 黒字. Red is a loss, black is a profit, the opposite of what some learners guess.
  • Reading 白 as shiro in every word. It is haku in 白鳥 and 白紙, while 面白い (omoshiroi, interesting) keeps shiro even though it has nothing to do with colour.

Make the colour grammar automatic

Type /kanji 緑 into the Mocchi chat to see its readings, its thread radical and common compounds, then ask Mocchi to describe five things in your room in Japanese and leave the colour word blank for you to fill in. Mocchi notes whether you still add い to 緑 by mistake and returns to it later.

For speed, make a small flashcard deck of colour phrases such as 緑のシャツ and 茶色い靴, then play Quick Flip in Unihongo's games with your own cards until the right form comes without thinking.

Key points

A practical way to improve

Look around the room and name ten objects with their colour, choosing the right pattern each time: 白い壁, 黒いかばん, 緑のカーテン, 茶色い机. Then add 真っ to the four basic colours and describe something that is completely that colour, such as 真っ白な雪. On a walk, read every colour kanji you can find on signs and packaging and say it aloud. Back home, ask Mocchi to give you ten colour phrases to complete with い, 色い or の, and to explain the pattern behind each answer.

FAQ

Frequently asked questions

Why is a green traffic light called 青 in Japanese?

Older Japanese used 青 (ao) for a wide range of blues and greens, and the word survives in names for green things such as 青信号 (green light), 青りんご (green apple) and 青葉 (fresh green leaves). Japanese traffic lights are a bluish green, and people call them ao.

Is green 緑い or 緑の?

緑 (midori) is a noun, so you say 緑の (midori no) before a noun: 緑のセーター, a green sweater. The same is true of 紫 (murasaki): 紫の花. Only red, blue, white and black are original i-adjectives, plus yellow and brown with 色: 黄色い, 茶色い.

How do you say brown in Japanese?

Brown is 茶色 (chairo), literally tea colour, and the adjective form is 茶色い (chairoi). Tea here refers to the colour of roasted tea leaves. In fashion you also hear ブラウン, especially for clothes and hair.

What do 赤字 and 黒字 mean?

赤字 (akaji), red letters, means a deficit or loss, and 黒字 (kuroji), black letters, means a surplus or profit. They come from bookkeeping, where losses were written in red. You see them in business news and hear them at work.