[D.Bolen]

(Just a couple of possible tips adding to comments already posted by "Velvet" & others.)
Because lighting is different in different areas of the country, in different homes, and in different areas of the same home at different times of the day, if you are able (unless by now you have found the color you decidedly prefer above all others), it may be worth your time to do this in the actual home you plan to paint:

Buy small jar samples of your potential color choices (Sherwin-Williams does not offer them, but at Home Depot you can get them for Sherwin-Williams and other paints for apx. $4). If you cannot get the samples in the paint finish you plan to use (flat/satin etc.) then buy quarts in the paint type you want even tho you'll be wasting a few $. Example, satin can appear slightly lighter than flat due to being more light-reflective.

Buy a corresponding number of white foam-filled poster boards at Dollar Store ($1.25) or Walmart & paint each board with one of the colors and paint types under consideration (boards are easy to use because they are firm & stand up easily). Dollar store also has cheap wide brushes so you can even buy a brush for each color & discard afterwards so no mess to clean, and if you don't have a drop cloth, buy one or more at $ store or invest in a reusable canvas one.

Paint at least 2 coats or the colors will not be accurate.

Place the boards against the walls in the various locations to be painted and compare them AT VARIOUS TIMES OF THE DAY (due to variations in lighting).

Interestingly, if you are having difficulty choosing between colors during this process, there will probably be at least one time of day when your order of preference will be obvious.