Color and Light

Two pictures, taken at exactly the same time of day, one in full sunlight and one in shadow.

The first, in full sun. The one below, in shade. It looks like an entirely different project.

Color matching is hard enough. Much easier if you can find a standard light and time of day. When I'm working on rugs, I select colors under natural daylight (I have a skylight, which helps) in the middle of the day.