Chameleon Paint

What is your design tool?

Can you post an image of the building and indicate the area where you want the effect to occur?

What is the color palette you're attempting to simulate?

I understand you want an iridescent effect, where the color is different depending on the angle of the surface to the camera. I do not believe this is possible via tools provided by enscape.

You could do this in post by producing a separate black and white rendering for masking purposes with strong with directional lighting and then user that plus the a material Id pass to make a selection for altering the hue in post production.