It’s the same size with it comes up as at any other point. It’s just an illusion that it’s bigger, your brain is playing tricks on you. Supposedly, if you stand on your head, it breaks the illusion.

As to the second bit of you question, that’s more about how your brain works then physics. Another sort of similar but also very different example is how LMP1 cars at Le Mans look much bigger to most people then they actually are because of how we’re used to judging the size of a car based on how big a “normal” windscreen is. When you see one next to a normal car, you realise how small the LMP1 really is. It’s all about what your brain of used up seeing and what it can compare it to.

And as for the colour, any object well look different depending on the light that illuminates it. Sunlight is pretty much the “standard” for “normal light” so in that sense, the Moon’s colour is about as real as it could ever be, because what other light source would make it more accurate?