Is there a way to make entites very bright regardless if they are in the shadows or not?

I need to make some 3d ui parts white or some other very bright color.

-edit, I came up with an alternative approach. You can use the lightning in your advantage if you only make e.g. the borders non-black (== efffected by lights etc.) and the middle part fully black, possible transparent. This way it doesn't matter much that the colored parts are effected since its only the border (it does not distract) and even makes the border less flat.