Brown shade in old photos (5)

I believe the answer is:

sepia

(Other definitions for sepia that I've seen before include "Dark reddish-brown pigment" , "Brown pigment produced from cuttlefish ink" , "Pigment got from cuttlefish ink" , "Brown of old photos" , "Brown with a red tinge" .)

I've seen this clue in The Wall Street Journal.

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