noun
saxe blue
A light grayish-blue color, named after the blue dye associated with Saxony (Sachsen). Used mainly in fashion and design contexts.
彼女はサックスブルーのワンピースを着ていた。
She was wearing a saxe blue dress.
Variant with interpunct; less common in everyday writing.
From English 'saxe blue', itself from French 'bleu de Saxe' (Saxon blue).