--color-uguisu-iro: #645530;
Uguisu-iro — Uguisu-iro is a deep, dark shade of brown with strong gray and black undertones, inspired by the dusky plumage of a nightingale bird. It falls into the brown color family. It is a dark, muted brown with a significant green and red component, and a smaller blue component, creating an earthy, natural brown hue.