Excuse me: What does the sentence "Children are born blue" mean?

"Children are born in blue" means that children born with reading materials will learn well in the future.

Extended data

"Be immersed in love" is one of the five elements of men's and women's love songs. The full text is as follows:

Water for men and women-water for men and women is auspicious, and wealth often enters the room at home. Children with expensive mountains often wear blue clothes.

There is another meaning of being an official. Don? Bai Juyi? Pipa Introduction: "But which of them cries the most?" ? ? This Jiujiang official. My blue sleeves are wet! " The blue of this poem is the blue official dress of Sima Guo. In the Tang Dynasty, civil servants wore eight kinds of green clothes.