How do I achieve this effect?

No.531700 ViewReplyOriginalReport
Greetings, the attached image is an artist I have always followed and loved, she has recently started using this really wild rainbow effect on her figures and I am very curious how it is done. I use DAZ/blender, primarily, and in blender I know how to make reflective/metallic colors but nothing with this pastel rainbow effect. Any suggestions would be great; normally I would look up a guide online but I have nonidea what to even search for this.