"青" (sei, ao). It is translated as blue, young, clear, etc.
This character is written by Kanzi, Regular script.
Etymology : Ideogrammic compound
青 ⇒ 生 (lifetime, birth) + 丹 (vermilion, well)
丹 : The meaning is the well where pigments collected.
It is interesting that this character was created by the distinction-colored meaning.
The blue is the color, that is good for the stage something is born.
The youthfulness seems to symbolize the future when was full of hope.
"Blue" It lets me expect of reincarnation.