Embodiments according to the present disclosure relate to physically implementing an integrated circuit design while conforming to the requirements of complex color based track systems. In embodiments, the color based track systems can include irregularly spaced and non-uniform width colored tracks. These and other embodiments include a methodology to snap instances to a set of such tracks such that all pins/shapes in the instance result in valid locations. In some embodiments, the methodology further includes creating a geometric representation of the tracks to assist in the quick identification of matching tracks.