Blue: a colour preferred by Europeans and especially men. Blue is, however, the coldest of colours yet denotes loyalty and authority.

Grey: one of the most common colours for a man's suit, it gives an efficient and distinguished image but, over-used, can portray the person as boring.

Black: the symbol of death, yet also one of the colours most worn to conferences. It provides no character unless teamed with a vivid colour, which can then make the image chic and inspiring.

Red: this vibrant and eye-catching colour stands out the most, especially in a crowd of hundreds of delegates. Red represents energy and speed but can also be seen as anger and danger, giving off negative connotations.

Green: to link a product to nature and hope, green is the colour to wear. Delegates remember this colour and associate it with green and environmental issues.

Pink: offers a symbol of love, softness and sweetness and works well as a colour to combat fear.

White: white is associated with purity and cleanliness but also portrays a cold and blank image. In Asian countries this colour is associated with mourning.

Yellow: a stimulating colour but not advised for very nervous people. To an audience it gives off warmth and is also pleasing to the eye, keeping the audience engaged.

The moral of the story...

...next time you dress for a conference, particularly if you are speaking, think about what you are wearing says about you!