Based on the color wheel, we notice that some colors or their shades give us a feeling of warmth or coolness.
Blue represents the coldest area in front of the orange (complementary color of blue see complementary colors) which, in turn, is the hottest sector.
Green and purple and other shades of blue are in the so-called transition zones COLD COLORS.
The green shaded shifted toward yellow while the violet nuanced shifted toward red.
In decoration, the introduction of COLD COLORS helps refresh space while producing a decline in print, then the walls seem farther than they actually are.
