What's the difference between Sepia and Supia?

SEPIA is a reddish-brown colour, named after the pigment derived from the ink-sac of the common cuttlefish .. it is also the description for an old photograph that is 'brown and white' rather than black an white.

SUPIA .. as well as being a town in Colombia .. is the name of a very creepy looking brand of dolls, from Korea .. or the 'sludge' left in the bottom of a coffee pot if you've used ground beans.

Sepia is a brownish-red color. Supia is a Spanish word referring to residue or grounds, such as coffee grounds.