貝かい紫むらさき色いろ

noun, noun which may take the genitive case particle 'no'

Tyrian purple; royal purple

A historical purple dye made from sea snails, associated with royalty and high status. Used as a color name in artistic, historical, or descriptive contexts.

• 古こ代だいローマでは貝かい紫むらさき色いろは皇こう帝ていの色いろとされていた。

  In ancient Rome, Tyrian purple was considered the color of the emperor.

• 彼かの女じょは貝かい紫むらさき色いろのドレスを着きてパーティーに現あらわれた。

  She appeared at the party wearing a royal purple dress.