I'm trying to mix a material with a color ramp with an image texture and I can't find a way to make it work.
This is my node set up for the material. Any help would be greatly appreciated.
Assuming that you don't want to apply the shader to the actual face of the texture, all you need to do is plug the alpha of the image texture into the mix shader socket. This should make the faintly discoloured box disappear, as it will only apply the ColorRamp to anything that isn't the face.
If this doesn't work, then check: