Not the color of a sword.

Not literal phantoms, but memories. A squad of YoRHa soldiers laughing over a ration pack. A Scanner unit crying as it watched birds fly south. 9S—her partner—smiling at her with those curious, doomed eyes. The images swirled around her, fragments of a life she was never meant to have.

Based on the fragment, you are likely referring to a specific of YoRHa No.2 Type B (commonly known as 2B ) from NieR: Automata , possibly bearing the artist or brand tag “Gintsu” .