Yes it is always rgb. I only have one cable plugged into mine to power it and it powers up the rgb without the rgb cable being connected so whatever.
Supposingly, The Ryzen 5 2600X come bundled with a Non-LED Wraith Spire while the Ryzen 7 2700 comes bundled with a RGB LED Wrath Spire.
Unless you purchased the Wraith Spire separately.
So if your Wraith Spire came bundled with your Ryzen 5 2600X is shouldn't have any lights on it: https://www.amd.com/en/technologies/cpu-cooler-solution
This Youtube video showing a User unpacking a Rzyen 5 2600X shows the Wraith Spire with no lights on it. Unboxing The AMD Ryzen 5 2600X - YouTube