Can’t really seem to make it work. Light’s are treated as they are white.
Colored lights will only currently work with a Best Render, not a BPR.
I’ve found that if one does a regular Best Render first then a PBR without moving the camera and resetting the viewport render the BPR retains the colored lighting information from the Best Render.
Yes I noticed that myself, but it actually more like blends the two renders together. So for example when you want to use SSS you are out of luck as the end effect is a mix between two since best render doesn’t really support SSS so it seems.
I guess a workaraound would bo to generate several BPR renderings with a single light from various sides and recolour all those layers in photoshop but that is kinda meh.