2D mograph animation on Blender?

[violet canyon]

Hey guys I'm trying to make a musical 2d animation with a flat style, and I have a couple of questions:

1: how do you make good 2d material? and how do you make the colors look nice? (without color deformation)
2: what rendering engine do you use and how do you optimize the rendering?
3: how do you use sound and how do you make it sync with the render?

Here's more or less what I'm trying to achieve:
https://m.youtube.com/watch?v=rRgXUFnfKIY

[upbeat token]

Try setting the camera to orthographic

That should be a good first step

[violet canyon]

yep, done
but what more?

my main problem is with the colors

I'm using a glossy material with roughness set to 1, but the color isn't the correct one (depending on the light it looks brighter or darker, which is good... for 3D)

[upbeat token]

Try emissions?

[violet canyon]

ok

the colors aren't precisely right...

this is what i was saying (the "color deformation")