Orange is decided to be a very hot color. It is like fire, makes you feel warm. This color can be associated with a hot summer sun or with the autumn when the leaves change their color. Orange color, when it is profitably set, can add warmth to every space.
Dark blue and violet are an interesting combination of colors for the interior. Brighter shades create a picturesque design and paler ones bring in the room mystery. Both colors can be used as accent colors in a neutral color palette but if you want a brighter design, they can be used in brighter shades.