Colors in Japanese
Colors in Japanese are more than vocabulary — they reveal how the language categorizes the world. Japanese distinguishes between "true" color adjectives (い-adjectives) and colors that function as nouns. Understanding this distinction is essential because it changes how you use colors in sentences. This guide covers all the key colors with kanji, hiragana, and the grammar you need.
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The Four Original い-Adjective Colors
Classical Japanese had only four true color adjectives. These are the only colors that can take the い-adjective ending directly, and they remain the most common colors in modern Japanese.
Each い-adjective color also has a noun form (drop the い): 赤 (aka, red), 青 (ao, blue), 白 (shiro, white), 黒 (kuro, black), 黄色 (kiiro, yellow). Use the い-form to modify nouns directly (赤い車, akai kuruma, red car) and the noun form with の (赤の車, aka no kuruma) or in compounds.
Noun-Form and な-Adjective Colors
These colors do not have a natural い-adjective form. They function as nouns and connect to other nouns using の (no), or in some cases behave as な-adjectives.
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How to Use Colors in Sentences
The grammar for using colors depends on whether the color is an い-adjective or a noun:
い-Adjective Colors (Direct Modification)
- 赤い花 (akai hana) — Red flower
- 青い空 (aoi sora) — Blue sky
- 白いシャツ (shiroi shatsu) — White shirt
- 黒い猫 (kuroi neko) — Black cat
Noun Colors (Use の to Connect)
- 緑のドレス (midori no doresu) — Green dress
- 紫の花 (murasaki no hana) — Purple flower
- ピンクのかばん (pinku no kaban) — Pink bag
- 茶色の靴 (chairo no kutsu) — Brown shoes
The color 茶色 (chairo) literally means "tea color." Many Japanese color names are compound words: 水色 (mizuiro, "water color" = light blue), 灰色 (haiiro, "ash color" = gray). This pattern makes them easier to remember.
青 (Ao): The Blue-Green Question
One of the most fascinating aspects of Japanese colors is that 青 (ao) historically covered both blue and green. Today, green things that are traditionally described as 青 include:
- 青信号 (ao shingō) — "Blue signal" = green traffic light
- 青りんご (ao ringo) — "Blue apple" = green apple
- 青葉 (aoba) — "Blue leaves" = green leaves
- 青虫 (aomushi) — "Blue bug" = green caterpillar
In modern everyday speech, 緑 (midori) is used for green in most contexts. But these set expressions preserve the old usage and appear constantly in daily life.
Frequently Asked Questions
What is the difference between い-adjective and な-adjective colors in Japanese?
い-adjective colors (赤い, 青い, 白い, 黒い, 黄色い) can directly modify nouns: 赤い車 (akai kuruma, red car). な-adjective colors and noun-form colors need な or の to connect: 緑の車 (midori no kuruma, green car). The い-adjective colors are the "original" Japanese colors, while the others were added to the language later.
Why does 青 (ao/blue) sometimes refer to green things in Japanese?
Historically, Japanese used 青 (ao) to cover both blue and green. This is why traffic lights are called 青信号 (ao shingō, "blue signal") even though they appear green, and why unripe fruits are described as 青い (aoi). Modern Japanese distinguishes blue (青) from green (緑) in most contexts, but the old usage survives in many set expressions.
How many basic colors does Japanese have?
Japanese traditionally has four basic color adjectives: 赤い (red), 青い (blue), 白い (white), and 黒い (black). These are the only colors that form true い-adjectives in classical Japanese. 黄色い (yellow) was added later. All other colors function as nouns or な-adjectives that were incorporated into the language over time.
How do you say "light" or "dark" with colors in Japanese?
Use 薄い (usui) for light/pale and 濃い (koi) for dark/deep: 薄い青 (usui ao, light blue), 濃い赤 (koi aka, dark red). You can also use the prefix 明るい (akarui, bright) and 暗い (kurai, dark) for brightness variations.