sepia
Refers to the reddish-brown color or the pigment derived from cuttlefish ink, often used in photography and art.
The photos from my grandmother's youth had turned sepia-toned.
The old photo faded to a sepia color over time.
She pasted the sepia-colored photo into her album.
From English 'sepia', ultimately from Latin 'sepia' (cuttlefish), referring to the ink used as a pigment.