How do i do this?

[youssof12314 (DaRealYouss)]

Hello!

So i’m trying to make a UGC item
Color changing Mesh, like this:

How do i do this on blender?

[youssof12314 (DaRealYouss)]

Psst, still no response from someone

[XIX_X1X (el_pedro)]

plane with different colors on each side