Yellow: This is a bright, cheery and sunny colour. It projects a showy, loud and brash image.

Brown: This colour projects soft tones. It calms and soothes the eyes. However, different shades of brown have somewhat dull and boring effects. Far from distracting your audience, this colour may bore your audience.

Black: The colour of authority rigidity and superiority. It intimidates with its severe formality. It keeps people at a distance and does not help in establishing a rapport with the audience.