Diffuse constant color render

Is there a way to render the scene without lighting, like a flat render of just the material file texture color but without any lighting. in some applications this is called a constant shader, or surface shader?

I have tried making a self illuminated material but it doesn’t really work. a self illuminated material sort of generates lighting and doesn’t match the input texture exactly. I just need a 1:1 exact render of this my texture color in the render without any kind of lighting applied to it. is this possible?