Clone trooper paint

I live in Japan (US military) and it is hard to get acrylic paints here. The arts shop doesn't have matte or satin white, but has warm white, snow white and just plain white. I don't think plain white will work, but what about warm or snow white being ok? I'm sure I would have to test it out, but maybe someone on here has worked with those colors. It can take forever for stuff to get shipped from the states.

I'm trying not to use rustoleum spray for the white.

Snow white seems like it could work- get a piece of waste material and test the paint on that

I was thinking the same thing as warm white just looked a bit to dark.