A method and system for determining cosmetic skin attributes of a person based on disorder value, which shows improved match to the persons' skin color or skin conditions and/or improved match to the persons' perceptions of their skin color or skin conditions. The method includes the steps of: obtaining at least one color image comprising at least one portion of skin of the person; analyzing the at least one color image to obtain a disorder value of a certain color; and determining the cosmetic skin attribute of the at least one portion of skin of the person based on the disorder value.