1. A system comprising: a color sensor to determine color of color patches printed on a substrate; a substrate support for supporting the substrate during operation of the color sensor, the substrate support including: projections extending from a base of the substrate support and arranged to support the substrate, and openings to allow deformation of the substrate towards the base; a distance sensor to measure a distance indicative of a distance between the color sensor and the substrate; and a controller to: determine, using the distance measured by the distance sensor, a location of a given projection of the projections, and determine a color of a color patch on the substrate at the determined location of the given projection.