This two-toned hiragana set takes simple inspiration from the colours surrounding the irogane (coloured metal) Shakudō. This ornamental copper-gold alloy has been used to decorate nihontō fittings and fine wares over Japan's storied history and is renown for its unique black patina.
Shakudō's black colour is achieved through the 'niiro' (boiled/cooked colour) patination process, where the original bronze-red Shakudō alloy is boiled in a typically seafoam blue-green solution! A curious side note is that Shakudō has garnered a colloquial name 'Crow Copper’ (カラスドウ) due to sometimes resembling the black-indigo sheen of crow feathers.
I hope you enjoy the set! Please fill this form out to the best of your ability so that I can take in your feedback, and gauge demand for the keycaps - Fuku