"Go well together" is different than "close together" if we are talking about matching clothes. Color matching effects is based on distances in the color wheel.

"Go well together" is different than "close together" if we are talking about matching clothes. Color matching effects is based on distances in the color wheel. Closest together is boring, largest distance is jarring. If you imaging a new axis only visible to tetrachomats, the color matching effects appreciated to a tetrachomat will most likely not have the same effect or even be visible to regulars.