Lights change my materials color

Hi guys,
I’m using a blue material in a scene with a orange light. The color goes green.
How can I desactivate the fact that my light change the aspect of one specific material ?

Thanks you !

As far as I know this is not possible without changing your material to be unlit.

If you shine a blue light at a whitish surface, the surface will appear blue. That is how physically correct lights work.
So shining an orange light onto a blue material will make it appear green.

As I said, lights will affect any material that is in lit mode. You could change the material to unlit mode, but that kind of defeats the purpose of having an orange light.