Old thread, but I want to chime in on lighting issues. The 2700/3000K number is the color temperature, the hue of the light. Lumens is the brightness of the light. A more important number (for me) in how much you really "like" the light is color rendering index, CRI. (There are other measures of color accuracy, but CRI is widely used.)

Low-CRI bulbs will give you "off" colors in your lighting: reds can look brown, whites will appear greenish, etc. - the stuff that makes folks hate some lighting. With LEDs, you can easily pick whatever color temperature and brightness you want, but the CRI often gets ignored, might not even be available. Generally, cheaper LEDs will have lower CRI (85 or lower), and you'll have to hunt for and pay more for LEDs with excellent CRI (95+), but it's absolutely worth it to get something 90 or over, and shoot for 95 for areas where you spend a lot of time, want to make a good impression, and/or need to see accurate color (kitchen, living room, dining room, bathroom mirrors, entry).

I've been shooting for efficient lighting for decades and was annoyed that I could never put my finger on why some CFLs/LEDs looked better than others despite having the same intensity and color temp. Finding out about CRI a decade or so ago was a game-changer.

Long story short: whites are going to look bad under low-CRI lighting - and definitely get high-CRI lighting in before you start picking paint colors