It should be borne in mind that the colour of a wall can seem to be a different shade depending on the colour of nearby surfaces and the room's lighting. The larger the wallpapered surface, the more intense it will look.

Colours affect us in many ways, and everyone has their preferences. Many people like blue, but probably not if used on every available possible. Blue jeans and a blue wall are two different things, and affect us in different ways.

Combining several colours can produce unexpected results. For instance, off-white baseboards can seem grey when combined with a bright yellow wall, pink with a green wall, yellow with a grey wall or pure white with a dark red wall.

Colours can be divided into cold and warm tones. Scandinavian home furnishing companies consider yellow, brown and red tones warm and blue and blue-green tones cold. It is also believed that colours can affect our mood.

For instance, red tones and patterns make people more active; green is calming; and using blue in a bedroom creates a feeling of crisp freshness.

Tests have also proven that no matter what the colour of a wall, we sense the passing of time in the same way. We also feel cold and warm in the same way in red and blue rooms.

Also, an abundance of colours in the same room can make some people feel invigorated and refreshed, while it leaves others feeling stressed.