This is because blue was related to rain, or storms, and in Greek mythology, the god Zeus would make rain when he was sad (crying), and a storm when he was angry.

因为蓝色与雨或暴风雨有关，在希腊神话中，宙斯在伤心时会降雨，生气时会有暴风雨。

youdao

This is because blue was related to rain, or storms, and in Greek mythology, the god Zeus would make rain when he was sad (crying), and a storm when he was angry.

因为蓝色与雨或暴风雨有关，在希腊神话中，宙斯在伤心时会降雨，生气时会有暴风雨。

youdao