Abstract: To provide a resin composition which can suppress discoloration caused by heat history applied at the time of molding. A resin composition containing: (A) a cellulose ester, (B) a styrene-based resin, and (C) a titanium dioxide, and not containing a compatibilizer between the component (A) and the component (B), in which the content of the component (A) is within a range of 95 to 50% by mass, the content of the component (B) is within a range of 5 to 50% by mass, and the content of the component (C) relative to 100 parts by mass of the sum of the amount of component (A) and the amount of component (B) is within a range of 0.1 to 10 parts by mass.