So just what is the colour red trying to tell us?

Red is the colour of fire and blood, so it is traditionally associated with energy, war, danger, strength, power, determination as well as passion, desire, and love.

Red is a very emotionally intense colour, it can have a measurable effect on the human body, enhancing human metabolism, increasing respiration rate, and raising blood pressure.

It has very high visibility, which is why warning signs, traffic lights, and fire equipment are usually painted red. In heraldry, red is used to indicate courage. It is a colour found in many national flags.

Red in Web Design

Red brings text and images to the foreground. Use it as an accent colour to stimulate people to make quick decisions; it could be considered the perfect colour for 'Buy Now' or 'Click Here' buttons on Internet banners and websites.

However do not forget the aggressive nature of the colour so a different shade may be more appropriate.   In addition red is more often used to highlight error messages when a user mistypes or miss-clicks whilst navigating, or to highlight required fields when used with an on-line form.

In advertising, red is often used to evoke erotic feelings (red lips, red nails, red-light districts, 'Lady in Red', etc). Red is widely used to indicate danger (high voltage signs, traffic lights). This colour is also commonly associated with energy, so it could be used when promoting energy drinks, games, cars, items related to sports and high physical activity.

The various shade also have different triggers associated:

Light red represents joy, sexuality, passion, sensitivity, and love.
Pink signifies romance, love, and friendship. It denotes feminine qualities and passiveness.
Dark red is associated with vigour, willpower, rage, anger, leadership, courage, longing, malice, and wrath.
Brown suggests stability and denotes masculine qualities.
Reddish-brown is associated with harvest and fall.

To demonstrate the various ways Red can be used in web design I have collated a few beautiful and visually impressive sites.  The following examples vary the degree to which they use of the colour red - rich full pallets, clean minimal highlights, red textures and small splashes of red on an otherwise dark or complementary colour scheme.

Flexible CSS

Intuitive Designs

Rotondo

Tinder

Kyle Haskins

Cafe Rouge

Crimson Publishing

Billy Tamplin

Erica Works

Nine Lion

Opera

Super Hair

Webfeat

YShout5

Hopefully this will have provided you with some inspiration and insight when next selecting your colour scheme.