Hi,
there are different concepts for applying colours to objects. The most important one is the colour palette that is applied to tracks and which is available as a dropdown palette with pre-defined colour choices (different kind of bluish like you said).
You can either built a custom colour palette from scratch (cumbersome) or you can extract one from a *cpr project and make it your default palette (and tweak it to taste afterwards if needed).
Here’s a tutorial on importing colour palettes as well as a couple of nice templates if you scroll further down