Is it okay to wear red clothes in Japan?

Yes.

There are no taboos on the color of clothes when traveling in Japan. Just bring appropriate clothes according to the local climate.

Red represents passion. Most women who like to wear red clothes have a positive outlook on life and an open-minded philosophy of life. The colors they taboo are mainly yellow and dark green. The Japanese do not like purple. When getting married in the living room, brides like to wear red and green clothes, but they don't like purple. Like white, purple, sincerity, black and red. Most Japanese believe in Shinto and Buddhism. They believe that the clothes on sale in Japan are never white, which has the strongest shock wave, and they hate green.