Thermoplastic resin composition and molded article

A thermoplastic resin composition comprising a graft copolymer (A), a vinyl copolymer (B), and a metal ion or metal ion-containing component (C), wherein:

• an amount of the metal ion or metal ion-containing component (C) is 60 ppm or more relative to a total mass of the thermoplastic resin composition,
• the graft copolymer (A) is a graft polymer obtained by polymerizing 80% by mass to 20% by mass of a vinyl monomer mixture (m1) including at least one type of vinyl monomer in the presence of 20% by mass to 80% by mass of a rubbery polymer (a) obtained from a polyorganosiloxane and an alkyl (meth)acrylate polymer, provided that a total mass of the rubbery polymer (a) and the vinyl monomer mixture (m1) is 100% by mass,
• the vinyl copolymer (B) is a vinyl copolymer obtained by polymerizing a vinyl monomer mixture (m2) including an alkyl (meth)acrylate monomer, and
• the metal of the metal ion or metal ion-containing component (C) is an alkali metal.