Trying to color an image through white balance is not a great practice. BAck before NLE was readily accessible, it made more sense. Now, all it does is take away options.
Similar to shooting black and white. If you are 100% absolutely sure that you are going to release in black in white, shoot it in color (in the digital world, film is different). Why? Even if you are really sure about something, you never know what's going to happen down the road. Also, more control. Having color data gives you the ability to select a color and raise or lower it's brightness which could make or break a black and white shot.
It's a simple color option in post to simulate what an off white balance would do. If you have a look you like, it's ok to switch to it to preview then back to the right record settings for recording. Our DP often switches between the Cinestyle profile (what we shoot in now 98% of the time) and a custom profile that's closer to what we grade. He get's the idea of what the shot will look like, then jumps back to the correct shooting mode.
Another problem doing it in camera, you won't be able to match that look across light spectrums. It may be cool making an indoor shot a little blue, but going outdoors you might realize you can't get that same blue, then you have fluorescent lighting and your not even close to blue.
Make everything white and correct, add the color in post. When you're more experienced, add color to lights on set, paint walls and adjust wardrobe. For now, make it white.