<p>First, the color of rainbow should be 红橙黄绿蓝靛紫, NOT 红橙黄绿青蓝紫. The later one is simple wrong however it was wildly spread thanks to one of Mao's poems.</p>

<p>In order to explain 青, we also need to understand 绿 and 蓝.</p>

<p>The definition of 绿 is quite clear: the color of green leaves/grass. It's the 4th of seven colors in rainbow.</p>

<p>蓝 is somehow vague. The original definition of 蓝 is: a kind of plant that has greenish/blueish color and can be used to extract dye (you can tell that by the top component of 蓝, 艹, which means herb). wiki: <a href="http://en.wikipedia.org/wiki/Persicaria_tinctoria" rel="noreferrer">Persicaria tinctoria</a>. There was a famous poem, quote:</p>

<blockquote>
  <p>春来江水绿如蓝</p>
</blockquote>

<p>which means: in the spring, the river water is as green as 蓝(the plant). If you interpreted 蓝 as a color then this line would be incompresensible. However it's hard to tell whether the poet was comparing riverwater to the color of the herb itself or the dye that came from the herb. I would guess it's the herb. Reasoning will be given after next quote.</p>

<p>Later 蓝 become a color (from the dye). 蓝 mostly refer to skyblue/lightblue/waterblue, which can be equal to the 5th color in a rainbow.</p>

<p>The 6th color is 靛, which is blue/indigo. Note the left part of this character is 青. 青 is somehow like indigo/midnight blue/prussian blue. (It can refer to other greenish colors but I'll cover that later.) There are a lot of evidence, for example: 1) if you google 青花瓷 you'll see the color of the pattern on those vases are blue/indigo. 2) 青布衣 was common clothing of peasants in Ming and Qing dynasty and it was dyed with indigo blue. </p>

<p>another quote:</p>

<blockquote>
  <p>青出于蓝而胜于蓝</p>
</blockquote>

<p>translation: 青(indigo dye) was extracted from 蓝(the herb) but the color is better.</p>

<p>So you can see 青 is indeed blue/indigo.</p>

<p>However there are other usage to suggest 青 is used as "green". The most notable would be:</p>

<blockquote>
  <p>青山绿水</p>
</blockquote>

<p>Hills are green for the trees growing on them. So why can 青, an indigo color, also refer to green?</p>

<p>I'll blame 五行 theory for this. In 五行, the five major colors are 赤(red), 白(white), 青, 黄(yellow), 黑(black). As you can see there's no 绿 or 蓝 or whatever other coloes of green/blue/indigo hue. However, 五行 was designed to be a theory of everything, a system to describe all phenomenon in the world. Therefore 青 has to take over the responsibility to cover all greenish/blueish items. Especially, in 五行, 青 is related to 木(woods/trees/herbs, one of the five 五行), so later on people started to use 青 for green color.</p>

<p>Last but not least: what is the color 青 in 青天? is it sky blue? Answer: no. If you google "kuomintang" you'll see the flag of kuomintang government 青天白日 is a white sun in indigo background. 青天 is used to describe government officials that are honest and hands clean, literally "as clear as the sky". So I think 青 in 青天 is a loan character(假借) from 清天.</p>

<p>--TLDR--</p>

<p>Conclusion: 青 should be indigo blue especially when referring to daily artifacts that were dyed by indigo. However it can also be used to mean green, especially plants.</p>

CC BY-SA 3.0
2014-05-08T08:34:21.467Z
Here is a link with some photos of indigo tie-dyeing by Bai people in Yunnan.  [link] (http://www.behance.net/gallery/Traditional-Indigo-Dying-in-Dali-Yunnan-China/11052113)  So this would be 青 rather than 藍?
neubau
CC BY-SA 3.0
2014-05-08T10:51:24.063Z
@user2619 I would describe this as 青. check this page: http://www.chinahexie.org.cn/a/zhonghuaguibao/fushiwenhua/fushigongyi/2012/1127/37631.html the abstract of this article says, "青底白花". I do agree that this color itself, when perspected by commoners, is the same as what we call 蓝 today. So for those people who do not know the traditional name of such type of clothes, it's only natual for them to call it 蓝印花布. But really it should be 蜡染青布. I'm not saying 蓝印花布 is not acceptable as it has already entered common usage, for people can understand what this name refers to when they hear it.
Rephinx
CC BY-SA 3.0
2014-05-07T09:29:59.097Z
2014-05-08T04:06:34.823Z
2014-05-08T04:06:34.823Z
Rephinx
<p>From <a href="http://zh.wikipedia.org/zh-cn/%E9%9D%92%E8%89%B2" rel="nofollow noreferrer">Wikipedia</a>:</p>

<blockquote>
  <p>青色（Cyan）又称为水绿色，在是指在介于绿色和蓝色之间的颜色，波长大约为500-485纳米。青色的含义没有统一规定，因人而异，可以泛指介于蓝色和绿色之间的各种颜色。在加色法中，青色被定义为等量的绿色光和蓝色光混合而成的颜色，如右边的色标所示。</p>
</blockquote>

<p><img src="https://i.sstatic.net/KhZd5.png" alt="enter image description here"></p>

<p>加色法中，绿色（G）和蓝色（B）混合得到青色。</p>

<p>In short, </p>

<h2>青色(cyan) = 绿色(green) + 蓝色(blue)</h2>

<p>However though in practice, most Chinese tend to interpret 青色 as 绿色 or less commonly as 蓝色.</p>

<p>What many of the answers above provide are the etymology of 青色. The table below give the technical names of all the different shades of green and blue. I have highlighted the more important ones. For the full list, see <a href="http://zh.wikipedia.org/wiki/%E9%A2%9C%E8%89%B2%E5%88%97%E8%A1%A8" rel="nofollow noreferrer">here</a>.</p>

<p><img src="https://i.sstatic.net/xDXAt.jpg" alt="enter image description here"></p>

CC BY-SA 3.0
2014-05-07T08:26:58.293Z
I don't think cyan (especially in the field of computer graphics) equals to 青 in Chinese. The color cyan in the image above is actually close to "水蓝色" and the color blue above is close to "靛青色", IMO.
Rephinx
CC BY-SA 3.0
2014-05-07T08:55:51.133Z
@Rephinx, if you refer to Baidu [article](http://baike.baidu.com/view/130174.htm), it says 青色 and 水绿色 are synonymous. Different people may perceive it differently, and that's alright.
杨以轩
CC BY-SA 3.0
2014-05-07T09:34:06.687Z
Baidu Baike is not a trustworthy source. It was edited by nonprofessionals.
Rephinx
CC BY-SA 3.0
2014-05-07T18:36:41.193Z
@Rephinx As a native speaker, '青', when not put in any context, means 'cyan' to me. IMO the Baidu article is incomplete but not incorrect.
NS.X.
CC BY-SA 3.0
2014-05-08T01:59:21.390Z
@Rephinx, both Wikipedia and Baidu says exactly the same thing. To imply that both are wrong is like 一竹竿打翻整船人.
杨以轩
CC BY-SA 3.0
2014-05-08T06:01:46.520Z
@NS.X. , I don't trust BaiduKaike and I seriously won't recommend any researcher to consult it. But that was off topic. Now back to 青. I have pointed out that 青 was never equal to cyan in traditional chinese understanding and context. The connection between Cyan and 青 was only created when people first try to translate it. And unfortunately whoever made that translation didn't completely understand the subtle difference between all those colors. Or, maybe he tried to find a single chinese character for Cyan and 青 was the closest he could found.
Rephinx
CC BY-SA 3.0
2014-05-08T06:13:14.850Z
(cont.) @QuestionOverflow although wiki is more solid than baike, I must mention that it's edited by anonymous people on web. They probably copied&pasted from somewhere else. 青 did not mean cyan, at least not like that 200 years ago. I admit that lots of people are used to this error and indeed there are too many errors in language established by common usage. But if you interpreted 青 as cyan, you would misunderstand whole lot of literatures.
Rephinx
CC BY-SA 3.0
2014-05-08T06:39:20.317Z
青梅、青山、青竹、青蛙、青龍、丹青、包青天、青瓦台、青黃不接、青枝綠葉、鼻青眼腫…… just imagine what it would be like if all these 青 are Cyan in people's eyes.
Rephinx
CC BY-SA 3.0
2014-05-08T06:40:13.070Z
@Rephinx, no, no. I never dispute the historical meaning of 青. If you want to take all that into consideration, you can never assign a single colour to it as it has several meanings. I don't believe that it is a mistake made by Wikipedia, but something that people has taken into consideration to create a new meaning for this word which would otherwise be discarded due to its ambiguity.
杨以轩
CC BY-SA 3.0
2014-05-08T06:48:28.837Z
@QuestionOverflow what's on wiki shows how some people thinks about 青, what they have got used to thanks to some immature and inconsiderate translation that eluded into common knowledge. I would correct it if I could... but who am I to argue with habitual errors in language... The recent creation of this meaning (青=cyan) is just another case of 约定俗成.
Rephinx
CC BY-SA 3.0
2014-05-08T07:37:57.653Z
@Rephinx, I would say that's how language evolve.
杨以轩
CC BY-SA 3.0
2014-05-08T08:26:20.537Z
@Rephinx I don't think there is any disagreement among us on what 青 _really_ means. The core of the argument is when the context is not explicitly stated in the question, as it was not, whether a simple response that describes the common, modern or even 以讹传讹 but widely adopted usage of the word considered an acceptable answer. To me it should be, especially when compared to some other obviously low-quality yet upvoted and accepted answers on this website. I would rather put my effort into improving those answers.
NS.X.
CC BY-SA 3.0
2014-05-07T04:55:39.253Z
2014-05-08T02:45:38.613Z
2014-05-08T02:45:38.613Z
杨以轩
<p>AFAIK, there are at least 4 colours being described as 青: indigo (靛青), deep blue (藏青), cyan (青) and lime/green-yellow (also 青). Because of this ambiguity, it is natural that native speakers from different parts of China understand it differently.</p>

<p>As a native from the south (Hong Kong), I use 青色 to describe the lime to green-yellow colour (as in 青草地). This may also be true in other Cantonese-speaking regions.</p>

<p>On the other hand, colour of rainbow is commonly described by the locals as 红橙黄绿青蓝紫. Although 红橙黄绿蓝靛紫 can be seen on texts. 藏青 is used by some (older-) locals to describe the colour of a deep blue jacket.</p>

CC BY-SA 3.0
2014-11-28T16:16:49.817Z
赤橙黄绿青蓝紫 is the normal term in normal life for the color of rainbow. However in physics, only 红橙黄绿蓝靛紫 is the correct for the color for rainbow, because the optical experiments prove it.
Victor
CC BY-SA 3.0
2014-11-26T01:59:17.417Z
2014-11-26T01:59:17.417Z
reds
<p>It is blue-green, perhaps Azure.</p>

<p>The Chinese have what they call the Four Symbols, which are basically four mythical creatures in the Chinese constellations.  Each one of them represents a direction and a season, and each has its own individual characteristics and origins. Symbolically and as part of spiritual and religious belief, they have been culturally important in China, Korea, Vietnam, and Japan.</p>

<p>The Azure Dragon (青龍 Qīnglóng), also known as Bluegreen Dragon or Green Dragon, also called the Blue Dragon (蒼龍 Cānglóng), is one of the Dragon Gods who represent the mount or chthonic forces of the Five Forms of the Highest Deity (五方上帝 Wǔfāng Shàngdì).</p>

<p>This term: 青龙 also refers to a man with no pubic hair (a slang term)</p>

CC BY-SA 3.0
2017-07-05T20:04:07.883Z
2017-07-05T20:04:07.883Z
Abe Shudug
<p>I am Chinese and I don't think 青色 is the same as 绿色 or 蓝色. For me, 青色 is more of a kind of blue. Personally, blue and 蓝色 also cover different shades of blue color.</p>

<p>This is a very common proverb:</p>

<blockquote>
  <p>青,出于蓝,而胜于蓝</p>
</blockquote>

<p>literally it means 青色 and comes from blue, but better than blue. Or more straightforward, 青色 is extracted from the blue plant(indigo), but is bluer than the plant. The next part is "冰，水为之，而寒于水"(ice comes from water but is colder than water). This proverb is often used to describe how students can achieve more than their teachers, or the younger ones can eventually do better. I think that is why 青 occurs in words other than color, like 青春，青涩，青年, to describe a young, inexperienced stage just like the green used in "green hand".</p>

<p>There is a common color name in Chinese, 靛青，which is a kind of dark blue.</p>

<p>check the <a href="http://zh.wikipedia.org/wiki/Category:%E9%9D%9B%E9%9D%92%E8%89%B2%E7%B3%BB" rel="nofollow noreferrer">wikipedia link</a> about the color.
青色 is the colors like Lapis lazuli, Salvia blue, Wedgwood blue or Slate blue. The screenshot below from <a href="http://zh.wikipedia.org/wiki/%E9%8B%BC%E9%9D%92%E8%89%B2" rel="nofollow noreferrer">wiki</a> describes the difference between 青色 and 蓝色.</p>

<p><img src="https://i.sstatic.net/IbJwU.png" alt="enter image description here"></p>

<p>For other use of "青" besides color and the implicit meaning of young， I don't know. </p>

CC BY-SA 3.0
2014-05-07T08:37:50.410Z
2016-09-23T06:41:44.027Z
2016-09-23T06:41:44.027Z
Zhenglei
<p>What is the difference between 绿 and 青? Do they refer to different shades of green? I know 青 can be used in many more contexts; it can be used to mean 'young' or 'immature'. I find it boggling how 青 can mean blue too. Do the Chinese differentiate between blue and green? Or does 青 mean blue+green?</p>

CC BY-SA 3.0
2014-05-07T03:56:52.907Z
The colors in the rainbow is listed as 赤橙黄绿青蓝紫 . You can see that 青 is between 绿 and 蓝 in the rainbow.
fefe
CC BY-SA 3.0
2014-05-07T03:59:53.430Z
This is quite often compounded by the Japanese use of 青い.. which refers to both green and blue in the English sense. See if anyone can come up with a good answer for this.
deutschZuid
CC BY-SA 3.0
2014-11-28T17:00:57.870Z
青 usually stands for the turquoise color or the cyan color in modern Chinese. In ancient Chinese, 青 also stood for extremely dark green (almost black).
Victor
CC BY-SA 3.0
2017-09-08T05:32:37.283Z
青 mean blue+green
Daniel Yang
CC BY-SA 4.0
2019-05-29T15:52:15.620Z
The [flag of the ROC](https://en.wikipedia.org/wiki/Flag_of_the_Republic_of_China) is described as "青天白日滿地紅" ("Blue Sky, White Sun, and a Wholly Red Earth"). Relevant question: [If 蓝天 means“blue sky”, does 青天 mean “cyan sky”?](https://chinese.stackexchange.com/q/32636/20826).
Flux
<difference>
What is the difference between 绿 and 青?
# What is the difference between 绿 and 青?

(Asked by: username_0 on 2014-05-07)

What is the difference between 绿 and 青? Do they refer to different shades of green? I know 青 can be used in many more contexts; it can be used to mean 'young' or 'immature'. I find it boggling how 青 can mean blue too. Do the Chinese differentiate between blue and green? Or does 青 mean blue+green?

**Tags:** difference

> **Comments:**
> **username_1**: The colors in the rainbow is listed as 赤橙黄绿青蓝紫 . You can see that 青 is between 绿 and 蓝 in the rainbow.  
> **username_2**: This is quite often compounded by the Japanese use of 青い.. which refers to both green and blue in the English sense. See if anyone can come up with a good answer for this.  
> **username_3**: 青 usually stands for the turquoise color or the cyan color in modern Chinese. In ancient Chinese, 青 also stood for extremely dark green (almost black).  
> **username_4**: 青 mean blue+green  
> **username_5**: The [flag of the ROC](https://en.wikipedia.org/wiki/Flag_of_the_Republic_of_China) is described as "青天白日滿地紅" ("Blue Sky, White Sun, and a Wholly Red Earth"). Relevant question: [If 蓝天 means“blue sky”, does 青天 mean “cyan sky”?](https://chinese.stackexchange.com/q/32636/20826).  

---

## 5 answers

### Answer by username_12 on 2014-05-07. Score: 17 | Accepted answer

I am Chinese and I don't think 青色 is the same as 绿色 or 蓝色. For me, 青色 is more of a kind of blue. Personally, blue and 蓝色 also cover different shades of blue color.

This is a very common proverb:

> 青,出于蓝,而胜于蓝

literally it means 青色 and comes from blue, but better than blue. Or more straightforward, 青色 is extracted from the blue plant(indigo), but is bluer than the plant. The next part is "冰，水为之，而寒于水"(ice comes from water but is colder than water). This proverb is often used to describe how students can achieve more than their teachers, or the younger ones can eventually do better. I think that is why 青 occurs in words other than color, like 青春，青涩，青年, to describe a young, inexperienced stage just like the green used in "green hand".

There is a common color name in Chinese, 靛青，which is a kind of dark blue.

check the [wikipedia link](http://zh.wikipedia.org/wiki/Category:%E9%9D%9B%E9%9D%92%E8%89%B2%E7%B3%BB) about the color.
青色 is the colors like Lapis lazuli, Salvia blue, Wedgwood blue or Slate blue. The screenshot below from [wiki](http://zh.wikipedia.org/wiki/%E9%8B%BC%E9%9D%92%E8%89%B2) describes the difference between 青色 and 蓝色.

![enter image description here](https://i.sstatic.net/IbJwU.png)

For other use of "青" besides color and the implicit meaning of young， I don't know.


---

### Answer by username_6 on 2014-05-07. Score: 10

First, the color of rainbow should be 红橙黄绿蓝靛紫, NOT 红橙黄绿青蓝紫. The later one is simple wrong however it was wildly spread thanks to one of Mao's poems.

In order to explain 青, we also need to understand 绿 and 蓝.

The definition of 绿 is quite clear: the color of green leaves/grass. It's the 4th of seven colors in rainbow.

蓝 is somehow vague. The original definition of 蓝 is: a kind of plant that has greenish/blueish color and can be used to extract dye (you can tell that by the top component of 蓝, 艹, which means herb). wiki: [Persicaria tinctoria](http://en.wikipedia.org/wiki/Persicaria_tinctoria). There was a famous poem, quote:

> 春来江水绿如蓝

which means: in the spring, the river water is as green as 蓝(the plant). If you interpreted 蓝 as a color then this line would be incompresensible. However it's hard to tell whether the poet was comparing riverwater to the color of the herb itself or the dye that came from the herb. I would guess it's the herb. Reasoning will be given after next quote.

Later 蓝 become a color (from the dye). 蓝 mostly refer to skyblue/lightblue/waterblue, which can be equal to the 5th color in a rainbow.

The 6th color is 靛, which is blue/indigo. Note the left part of this character is 青. 青 is somehow like indigo/midnight blue/prussian blue. (It can refer to other greenish colors but I'll cover that later.) There are a lot of evidence, for example: 1) if you google 青花瓷 you'll see the color of the pattern on those vases are blue/indigo. 2) 青布衣 was common clothing of peasants in Ming and Qing dynasty and it was dyed with indigo blue.

another quote:

> 青出于蓝而胜于蓝

translation: 青(indigo dye) was extracted from 蓝(the herb) but the color is better.

So you can see 青 is indeed blue/indigo.

However there are other usage to suggest 青 is used as "green". The most notable would be:

> 青山绿水

Hills are green for the trees growing on them. So why can 青, an indigo color, also refer to green?

I'll blame 五行 theory for this. In 五行, the five major colors are 赤(red), 白(white), 青, 黄(yellow), 黑(black). As you can see there's no 绿 or 蓝 or whatever other coloes of green/blue/indigo hue. However, 五行 was designed to be a theory of everything, a system to describe all phenomenon in the world. Therefore 青 has to take over the responsibility to cover all greenish/blueish items. Especially, in 五行, 青 is related to 木(woods/trees/herbs, one of the five 五行), so later on people started to use 青 for green color.

Last but not least: what is the color 青 in 青天? is it sky blue? Answer: no. If you google "kuomintang" you'll see the flag of kuomintang government 青天白日 is a white sun in indigo background. 青天 is used to describe government officials that are honest and hands clean, literally "as clear as the sky". So I think 青 in 青天 is a loan character(假借) from 清天.

--TLDR--

Conclusion: 青 should be indigo blue especially when referring to daily artifacts that were dyed by indigo. However it can also be used to mean green, especially plants.

> **Comments:**
> **username_7**: Here is a link with some photos of indigo tie-dyeing by Bai people in Yunnan.  [link] (http://www.behance.net/gallery/Traditional-Indigo-Dying-in-Dali-Yunnan-China/11052113)  So this would be 青 rather than 藍?  
> **username_6**: @user2619 I would describe this as 青. check this page: http://www.chinahexie.org.cn/a/zhonghuaguibao/fushiwenhua/fushigongyi/2012/1127/37631.html the abstract of this article says, "青底白花". I do agree that this color itself, when perspected by commoners, is the same as what we call 蓝 today. So for those people who do not know the traditional name of such type of clothes, it's only natual for them to call it 蓝印花布. But really it should be 蜡染青布. I'm not saying 蓝印花布 is not acceptable as it has already entered common usage, for people can understand what this name refers to when they hear it.  

---

### Answer by username_8 on 2014-05-07. Score: 3

From [Wikipedia](http://zh.wikipedia.org/zh-cn/%E9%9D%92%E8%89%B2):

> 青色（Cyan）又称为水绿色，在是指在介于绿色和蓝色之间的颜色，波长大约为500-485纳米。青色的含义没有统一规定，因人而异，可以泛指介于蓝色和绿色之间的各种颜色。在加色法中，青色被定义为等量的绿色光和蓝色光混合而成的颜色，如右边的色标所示。

![enter image description here](https://i.sstatic.net/KhZd5.png)

加色法中，绿色（G）和蓝色（B）混合得到青色。

In short,

## 青色(cyan) = 绿色(green) + 蓝色(blue)

However though in practice, most Chinese tend to interpret 青色 as 绿色 or less commonly as 蓝色.

What many of the answers above provide are the etymology of 青色. The table below give the technical names of all the different shades of green and blue. I have highlighted the more important ones. For the full list, see [here](http://zh.wikipedia.org/wiki/%E9%A2%9C%E8%89%B2%E5%88%97%E8%A1%A8).

![enter image description here](https://i.sstatic.net/xDXAt.jpg)

> **Comments:**
> **username_6**: I don't think cyan (especially in the field of computer graphics) equals to 青 in Chinese. The color cyan in the image above is actually close to "水蓝色" and the color blue above is close to "靛青色", IMO.  
> **username_8**: @username_6, if you refer to Baidu [article](http://baike.baidu.com/view/130174.htm), it says 青色 and 水绿色 are synonymous. Different people may perceive it differently, and that's alright.  
> **username_6**: Baidu Baike is not a trustworthy source. It was edited by nonprofessionals.  
> **username_9**: @username_6 As a native speaker, '青', when not put in any context, means 'cyan' to me. IMO the Baidu article is incomplete but not incorrect.  
> **username_8**: @username_6, both Wikipedia and Baidu says exactly the same thing. To imply that both are wrong is like 一竹竿打翻整船人.  
> **username_6**: @NS.X. , I don't trust BaiduKaike and I seriously won't recommend any researcher to consult it. But that was off topic. Now back to 青. I have pointed out that 青 was never equal to cyan in traditional chinese understanding and context. The connection between Cyan and 青 was only created when people first try to translate it. And unfortunately whoever made that translation didn't completely understand the subtle difference between all those colors. Or, maybe he tried to find a single chinese character for Cyan and 青 was the closest he could found.  
> **username_6**: (cont.) @QuestionOverflow although wiki is more solid than baike, I must mention that it's edited by anonymous people on web. They probably copied&pasted from somewhere else. 青 did not mean cyan, at least not like that 200 years ago. I admit that lots of people are used to this error and indeed there are too many errors in language established by common usage. But if you interpreted 青 as cyan, you would misunderstand whole lot of literatures.  
> **username_6**: 青梅、青山、青竹、青蛙、青龍、丹青、包青天、青瓦台、青黃不接、青枝綠葉、鼻青眼腫…… just imagine what it would be like if all these 青 are Cyan in people's eyes.  
> **username_8**: @username_6, no, no. I never dispute the historical meaning of 青. If you want to take all that into consideration, you can never assign a single colour to it as it has several meanings. I don't believe that it is a mistake made by Wikipedia, but something that people has taken into consideration to create a new meaning for this word which would otherwise be discarded due to its ambiguity.  
> **username_6**: @QuestionOverflow what's on wiki shows how some people thinks about 青, what they have got used to thanks to some immature and inconsiderate translation that eluded into common knowledge. I would correct it if I could... but who am I to argue with habitual errors in language... The recent creation of this meaning (青=cyan) is just another case of 约定俗成.  
> **username_8**: @username_6, I would say that's how language evolve.  
> **username_9**: @username_6 I don't think there is any disagreement among us on what 青 _really_ means. The core of the argument is when the context is not explicitly stated in the question, as it was not, whether a simple response that describes the common, modern or even 以讹传讹 but widely adopted usage of the word considered an acceptable answer. To me it should be, especially when compared to some other obviously low-quality yet upvoted and accepted answers on this website. I would rather put my effort into improving those answers.  

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### Answer by username_10 on 2014-11-26. Score: 1

AFAIK, there are at least 4 colours being described as 青: indigo (靛青), deep blue (藏青), cyan (青) and lime/green-yellow (also 青). Because of this ambiguity, it is natural that native speakers from different parts of China understand it differently.

As a native from the south (Hong Kong), I use 青色 to describe the lime to green-yellow colour (as in 青草地). This may also be true in other Cantonese-speaking regions.

On the other hand, colour of rainbow is commonly described by the locals as 红橙黄绿青蓝紫. Although 红橙黄绿蓝靛紫 can be seen on texts. 藏青 is used by some (older-) locals to describe the colour of a deep blue jacket.

> **Comments:**
> **username_3**: 赤橙黄绿青蓝紫 is the normal term in normal life for the color of rainbow. However in physics, only 红橙黄绿蓝靛紫 is the correct for the color for rainbow, because the optical experiments prove it.  

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### Answer by username_11 on 2017-07-05. Score: 0

It is blue-green, perhaps Azure.

The Chinese have what they call the Four Symbols, which are basically four mythical creatures in the Chinese constellations. Each one of them represents a direction and a season, and each has its own individual characteristics and origins. Symbolically and as part of spiritual and religious belief, they have been culturally important in China, Korea, Vietnam, and Japan.

The Azure Dragon (青龍 Qīnglóng), also known as Bluegreen Dragon or Green Dragon, also called the Blue Dragon (蒼龍 Cānglóng), is one of the Dragon Gods who represent the mount or chthonic forces of the Five Forms of the Highest Deity (五方上帝 Wǔfāng Shàngdì).

This term: 青龙 also refers to a man with no pubic hair (a slang term)


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