How to say "crimson" in Japanese

• 赤あかJLPT N5approx.Common
  no-adjectiveThe basic noun for red, covering crimson and scarlet as shades of it. Use this when naming the color in general statements, such as saying the sky or a flag is that color.
  信号機しんごうきが赤あかの間あいだは道路どうろを渡わたるな。↗

  Don't cross the road when the signal is red.
• 赤いあかいJLPT N5approx.Common
  i-adjectiveThe everyday adjective for red, including crimson and scarlet things. Use it to describe a noun directly, as in a crimson dress or a red apple.
  彼女かのじょは赤あかいスカートをはいていた。↗

  She was wearing a red skirt.
• 紅くれないCommon
  nounCovers deep red and crimson, with a vivid, rich nuance. Best for literary or descriptive writing about intensely colored things, such as crimson flowers or autumn leaves.
• 紅色べにいろCommon
  nounNames a color shade that ranges over red, crimson, and vermilion. Use it when you want to identify a color explicitly rather than describe something, though 赤い is usually the more natural choice for 'crimson'.

For most everyday 'crimson' contexts 赤 or 「赤い」 is what you want; 紅 suits deep crimson tones, and 紅色 names the color itself as a shade close to crimson or vermilion.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 赤あかred
• 赤いあかいred
• 紅くれないdeep red
• 紅色べにいろred
• クリムソンcrimson
• 緋ひscarlet
• 唐紅からくれないcrimson
• 茜色あかねいろmadder red
• 洋紅ようこうcarmine
• 丹紅たんこうred
• カーディナルcardinal (color)