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The present invention relates to a polypropylene composition comprising a polymer of propylene, a halogen-free flame retardant containing nitrogen and phosphorus, a pigment and additives, wherein the additives comprise at least one hindered amine light stabilizer (HALS) containing at least one ester-group and at least one acid scavenger. The present invention is, furthermore, directed to an article comprising the polypropylene composition, and to the improvement of the UV stability of a polypropylene composition comprising a halogen-free flame retardant containing nitrogen and phosphorus.