regarding color ... LEDs are marketed typically as "warm white" and "cool white" but there are also "daylight" and "bright white" colors out there to confuse things.
warm-white is going to be the most yellow or should I say, least blue, but will still look blue if you run it next to an incandescent bulb. technically the color temperature is between 2700 and 3500 kelvin
cool-white is going to look brighter because it has more green in it, and our eyes perceive green as brightness. the color of the light is blue like the sky on a cloudy day, and might not be the most attractive color to use indoors or at night 4100 - 5000 kelvin
bright-white is sometimes a synonym for cool-white, and sometimes a color in between warm and cool. 3500-4100 kelvin for a a bright or "neutral" white
daylight-white is also a synonym for cool-white but sometimes means it's even bluer than cool-white, blue like the sky on a sunny day. 6500 kelvin typically