Steep your home in moody blue hues for spring

Now my take on this is that in 2000BC to 1995AD, houses of every class in Ireland were all genuinely cold, and anything that added an aesthetic breeze of open air, dense ice or the crashing Atlantic in February, was deemed, (rightly), chill.
Languishing at 20°C-21°C today, place any blue room against a stark monochrome interior of sheer black and white and see whether you reach for the chenille throw or not?