A method and a kit-of-parts are provided for dyeing keratinous material. The method includes applying a first agent to the keratinous material and applying an second agent to the keratinous material. The first agent includes at least one organic silicon compound. The second agent comprises at least one colorant compound and at least one film-forming polymer. The colorant compound includes at least one effect pigment including a substrate platelet including synthetic mica. The colorant compound further includes a coating including at least a first metal oxide (hydrate) layer.