Red.
The centre circle on a Japanese flag - is Red.
The half circle American flags are called "half-staff flags."
They are rectangular and have red and white in them.
One is the current official Japanese flag (white background with a red circle in the center), while the other one is not normally used except in niche situations, as it makes some references to the Imperial Japanese military in World War II (white background with a red circle with many red spokes around it that represents rays of the sun)
white and red
white
i would think red ? :D if you disagree then you are wierd :L
You may say 'maru.'
white and red
The Japanese word for color is iro
White
blue and gold