I replaced all the bulbs in a small office a few years back. The owner's wife had a friend that was an interior decorator.
She came in and said they needed to swap out the fluorescent bulbs with LEDs with a specific K output.
It was amazing how the wall color changed as I swapped the bulbs out.
Now I put 5k bulbs in kitchens and bathrooms. 2700's in everything else if possible.
I have gone into apartments where someone bought new bulbs and replaced one in a two or three bulb fixture but it was a different light output. Looks odd. My OCD can hardly stand it.
Look at a room that has natural sunlight, then go back at night and look with the different bulbs going. It's amazing at times the difference you can see. --107.147.xx.xxx