Happy Valentine's Day! I decided this color is the most appropriate to talk about since Red is is all about love and passion. Red is intense and very powerful. It intensifies our physical reactions; stimulates a faster heartbeat and breathing according to Color Psychology studies. Seeing Red causes people to react faster and more forcefully. Red is the warmest of all colors and is chosen the most by extroverts and one of the top pics of males:) So now you know what to wear ladies for your first date;)
In decorating, Red is usually used as an accent and is definitely attention grabber. The color Red can have a dramatic effect in a room, whether used on the walls or furniture. You can subtly add warmth with Red or complement existing cool colors with it, or just add drama to a room.
Let's not forget Red is Energy! with big "E"! I wouldn't recommend Red in a bedroom or a child's room as it was proven to increase respiratory rate and stimulate, and what you usually want to do in your bedroom is to relax and sleep. Well, at least most people do, right?!
However I would say Red would be a great choice of color to an office since it can help to increase your energy level and maybe help you to accomplish a task or two faster then you think;)
So let's have a look on some of my favorite rooms with red.

Four pictures below show Red on accent walls.

Personally my favorite idea for use of color Red in a room.

Now notice how Red can transform a spaces with just addition of this color for example in curtains or pillows; or in furniture pieces, like red chair or sofa