scarlet, cardinal
緋 centers on a vivid deep red color: scarlet or cardinal. It is used for bright red dyes, fabrics, and symbolic reds.
緋 combines 糸 (thread/silk) with 非, which likely contributes the sound. The character refers to a specific red color used in textiles.
Silk thread 糸 dyed with a special non-ordinary 非 red becomes the vivid scarlet of 緋.
For ヒ, imagine a scarlet silk scarf that makes you say 'hee!' in delight: hee -> ヒ, and the bright red color catches your eye.
scarlet; crimson; cardinal red
scarlet; cardinal red
American wigeon (Anas americana)
Taiwan cherry (Prunus campanulata); winter cherry tree
pale scarlet
rosy goatfish (Parupeneus chrysopleuron); yellow-striped goatfish
deep scarlet
scarlet
scarlet robe
red hakama (worn by miko or noblewomen at court)
Taiwan cherry (Prunus campanulata); winter cherry tree
Choenomeles lagenaria; hiboke flowering quince
Taiwan cherry (Prunus campanulata); winter cherry tree
Hibai Japanese apricot
himedaka; gold-colored breed of the Japanese rice fish (Oryzias latipes)
ruddy-breasted crake (Porzana fusca)
scarlet bindings used with a traditional Japanese suit of armor
crimson crepe (fabric)
scarlet sage (Salvia splendens); red salvia
red hakama (worn by miko or noblewomen at court)