Originally Posted by swifty
As an owner of a mineral white 335i, I can tell you there isn't any yellow to it. Infact, according to bmw the Alpine White has a yellow shade to it. Pure white is like the Ibis white you find in Audis.
AW - some yellow hue
Mineral White - silver flakes (hence metallic color)
Brilliant white - flakes of green, blue and red in it to give it a metallic look (this according to a brialliant white M3 owner on this forum)
You're probably right as far as the paint colors mixed in. I'm just giving my comparison based on seeing both of them side by side in the sunlight. Alpine white looks more like a pure white when they are side by side. I could grab some pantone color chips to really compare whites, but I don't really care that much.