I can really relate to this recently. My tailgate on my Jeep was replaced last week. The shop did an outstanding job. It looks like new from the reaR. Even though the color is a perfect match, there is just a sheen difference to the tailgate that I pick up in the sunlight as I approach it. Different light, different looks even on my beautifully repaired Jeep.
Paint - Know Your Sunshine!
Having just finished a big painting job, I have learned a big lesson. No, I didn't do any of the painting, I just made the painting decisions. And I made a bad decision! Paint - Know Your Sunshine.
Although I've painted for many years in many houses, I hadn't experienced the light differences of my current home. This particular home is a 2 story with north/south exposure like a lot of Arizona homes. I'm used to single story homes. This type of exposure means darker rooms in some areas as the southern sun has brighter exposure and some of my rooms have no southern or east/west exposure. Paint - Know Your Sunshine.
Due to directional sun exposure, light can change from room to room. Light exposure also changes paint color. So, using the same paint color in a variety of rooms produces different shades of the same paint, even if it's from the same can.
So, if you're planning on painting the same paint color in different rooms, walk from room to room with the paint palet and see what happens on different walls with different sun exposures. The differences might surprise you. You might also try doing this at different times of the day, depending on which direction the room is facing with sun exposure.
Learning this valuable lesson was expensive as I chose one paint color based on one view. I found that the color was hideous in some rooms and acceptable in others. I've since repainted with a different color. An expensive lesson - Paint - Know Your Sunshine!