What is rainbow hy?

Hy stands for purple. Purple refers to a color in daily life. Purple is a secondary color, consisting of warm red and cold blue. In China tradition, purple is a noble color. For example, the Forbidden City in Beijing is also called the Forbidden City, and there is also the so-called "purple gas coming from the east". Affected by this, the Japanese royal family still respects purple. This stems from the worship of Polaris in ancient China. But in the Ming Dynasty, Huang Cheng interpreted purple as brown, which was the first color of birds. Therefore, in ancient lacquerware, purple sand lacquerware generally refers to brown lacquerware. There are also movies and books of the same name.