I know one translation is "kurenai", like the character from Naruto.
well.... crimson and red are the same.... and Japanese for red is akai. ("a" as in "father," and "ai" as in "kite.")
shu
Crimson in Japanese 真赤になります 真赤 Makka
According to a translator, you say crimson in Japanese as "Kurimuzon".
Crimson is karakurenai. The Kanji for it is 唐紅
クリムゾンブレイド Kurimuzonbureido
クリムゾンフラッシュ Kurimuzonfurasshu
akai tenshi
The japanese flag is a white flag with a crimson circle in the middle.
kurimzonhana? Akai hana?
Kurenai means "crimson" in Japanese
Shinku no shi no ha