The flag of Japan, called the Nisshōki or Hinomaru, features a white background (color code: #FFFFFF) with a red circle (color code: #BC3F4A) placed in the center. The flag has an aspect ratio of 2:3 (width to length). The red circle represents the sun and is geometrically designed as follows:

1. Diameter: The circle has a diameter equal to 3/5ths of the flag's length.
2. Positioning: The circle is horizontally centered on the flag and its vertical position is such that the distance from the top edge to the center of the circle is equal to 1/2 of the flag's width.

There are no other symbols or designs on the flag.