Brown shade (5)
(Other definitions for sepia that I've seen before include "Brown tone associated with old photographs" , "Brown pigment produced from cuttlefish ink" , "Sort of drawing" , "brownish colour" , "Brown of old photos" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">brown shade</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for umber that I've seen before include "Dark to reddish brown" , "Yellowish-brown pigment" , "Deep brown" , "Brown earthy substance used as pigment" , "Natural pigment" .)