Definitions for "Warm Colours"
Colours that are said to come toward you. Examples-red, red-orange, orange, yellow-orange etc.
colours suggesting warmth (e.g. red, yellow, orange)
The reds, yellows and oranges of the colour wheel are referred to as the warm colours, these colours give the effect of creating more adrenaline, raising your blood pressure, increasing your rate of breath and therefore increasing your temperature, making you feel warm. Obviously the stronger the colour the more intense the effect.