Kumar, your quote is about psychological effects. Nowhere does it state that you actually get colder or warmer by seeing or wearing "cold" or "warm" colours - but you may feel so.
That is also a effect. Anyway, suppose suppose just seven visible colours are involved in equal amount in any light to be exposed to any coloured object. Two objects with equal amount, one of pure red colour & other pure blue, if exposed to that light--what will be nett balance temperature i.e. of seven minus red & seven minus blue of those objects after equal exposure to that light.
Besides, on the inside of clothes, it is dark, if you are not wearing see-through materials. Or are you now believing that the colours work even without light?
Usually, it can't be without any light. However pls tell above calculation.
And you still have not commented on the effects on blind people.
I an just getting 'clour blinds'. Probably we may have to survey, practically.