The term 'off-white color' can be described by the crossword solutions of OYSTER (6 letters), PEARL (5 letters), IVORY (5 letters), and BONE (4 letters). OYSTER is a type of mollusk that produces a type of shell which is often off-white in color. PEARL is a type of gemstone that is formed inside an OYSTER and is also off-white in color. IVORY is a hard, off-white material that is obtained from the tusks and teeth of animals such as elephants and walruses. BONE is a hard, off-white material that is found in the skeletons of animals. All of these materials are off-white in color and can be used to describe the term 'off-white color'.