Guild Wars 2

Hiya.

As it says, it would be nice if you could see the color of the
level you’ve reached. To my knowledge, you can’t. Both the numbers
displayed in the bottom left corner and in the top right corner, when
you press H, are white. Would be nice if you could see the color changes, as
it might serve to be both pretty and act as an indicator that you’re really
leveling !

The color doesn’t change. Other people have a different color than you based on how much higher/lower they are than you. Your own level would always be the same color.