In your particular apartment, there may be reflexes from a brightly colored house standing too close. Or, on the contrary, you have huge windows and a sunny side – all shades will seem brighter. What kind of light bulbs do you have? It may happen that under artificial light, unpleasant shades (which were not visible during the day) will appear in the painted fragment.
There are dozens of factors – it’s not just “take the paint a tone lighter.” It’s easier to just try it on.