The Rising Sun Flag and " Kimi Ga Yo" are respectively the national flag and anthem of Japan.
This was formalized in 1999 with the Law Regarding the National Flag and National Anthem.
Nisshoki (The rising sun flag. Also known as Hinomaru)
RATIO and POSITION
height : width = 2 : 3
the rising sun at the center of the flags
diameter : three-fifths of the flags' height
base : white
the rising sun : deep red
Kimi ga Yo wa
Chiyo ni Yachiyo ni
Iwao to narite
Koke no musu made