A variegated polymeric article such as a variegated siding panel having improved depth of color and a three-dimensional appearance is formed having a substantially clear, methacrylic acid based capstock coextruded to a tinted polyvinyl chloride based substrate material. A specially formulated streaker pellet provides accent color streaks within the capstock to simulate a wood grain appearance. The use of a clear capstock material eliminates the need for capstock tinting necessary in the prior art to color match the capstock to the substrate material in post formed variegated vinyl sidings. Titanium dioxide may also be introduced in small amounts to the capstock to provide further ultraviolet light protection to the underlying tinted polyvinyl chloride based substrate material.