Third thing
The pieces used in the interior were supplied by various vendors, who may or may not have sourced their materials from the same place. Also, Items like the molded vinyl console lid are going to be slightly different in color than the molded plastics of the trim pieces, or the heat-shrink vinyl used on the dash, or the vinyl yardage used in seats and door panels.
Differences in materials can affect color match but suppliers are held to a strict standard and are required to use colorimeters to ensure color match. You can match color between components that have different materials. We do it every day. Delta E is the metric used to measure color shift with a colorimeter. If it’s out of specification you adjust the concentrate pigment loading. At the beginning of any new launch program there is a lot of development work on the pigment to ensure color harmony throughout the interior.