How to understand blue clouds?

Blue: a kind of blue, used to describe the color similar to a clear sky.

Pinyin: Wailan

Source: Cao Yu's Peking Man Act I: "There are three or two white clouds floating in the blue sky."

Ex.: The sky is beautiful and blue.

Extended data

Synonym:

1, blue: sunny blue; The deep blue of a lake, sea, etc.

Pinyin: zhànlán

Source: Cycle 9 of Dr. Bethune: "The three of them spit out milky white smoke ... floating out of the window and disappearing under the blue sky."

2. Sea blue: It is one of the blues, between blue and sky blue.

Source: Liu from Fulaerji to Qiqihar: "I don't know if it is a lark or a lark. It was flying in the sky, but when I looked up, I saw a sea blue, and there was not even a bird. "

Example: Young navy soldier, wearing navy uniform and white lapels.

3. Sky blue: Sky blue, also known as blue, refers to light blue, a color between blue and dark blue, named after the color is similar to clear sky. Sky blue is a special pigment used to draw Chinese paintings.

Pinyin: Tianan

For example, the sky blue pigments sold are generally packed in tubes and blocks, and there are also pigment powders.