sepia
/ˈsi:pɪə; `sipɪə/ n[U]
1 brown colouring-matter used in inks and water-colour paints and (esp formerly) for printing photographs 斯比亚褐色颜料（用作墨水或水彩画颜料, 尤指旧时印照片用的）.
2 rich reddish-brown colour 浓艳的红褐色. sepia, adj [usu attrib 通常作定语]
of sepia colour 红褐色的
an old sepia photograph 一张旧的红褐色照片.