Refers to a subdued, brownish-yellow color like that of persimmon tannin or unbleached cloth. Often used in traditional Japanese color contexts.
She was wearing a tan-colored kimono.
I painted the wall a light brown color.
Compound of 渋 (shibu, 'astringent persimmon tannin') and 色 (iro, 'color'), referring to the brownish-yellow hue of persimmon tannin.