I have an issue in eevee where the color of a material is different from the color I’ve chosen, even in the material preview window, despite the material being an emission shader. Heres a picture giving an example:example|487x414
I added the colors right next to each other in the top left view so you can see the difference more clearly. The more saturated one is the color I chose, and the grey-ish washed out one is what Blender gave me. Heres a demo file you can look at bad color.blend (669.8 KB) if you want.
I don’t think the issue is color management, since I already tried messing around with that and it doesnt fix the problem (or sometimes it ALMOST does, but never completely).