Colours are important factors in a PowerPoint Presentation. Text colour, background colours or patterns in the background play tricks on a person's eyes if layered in certain ways. Colours on a computer screen look different when projected by a projector on a screen. Use some of these techniques for finding the best colours for a PowerPoint Presentation.
Bold Colored Text
Use bold coloured text for emphasising important points in your presentation. If you use a solid, light colour like blue for the background, a bright or dark colour like green, red or black shows up well for the text. The text stands out, and your eyes draw straight to the lettering. The point of the presentation is getting the listeners reading the text, so it reinforces your point.
Complementary colours make things stand out in your presentations. Complementary colours are colours opposite each other on the colour wheel. Red and green, orange and blue or purple and yellow are the three sets of complementary colours. If you make the background orange and the words blue, the colours make each other look brighter. This works with different shades of the colours too. Use a light orange background with dark blue lettering for an effect that is easier on the eyes. Make sure everything on the slide stays in the set of complementary colours you use.
Using a multicoloured background makes presentations more chaotic. It makes reading the text more complicated and, sometimes, impossible. Using multicoloured backgrounds is possible. Muti-coloured backgrounds catch people's eyes, so try using a multicoloured background with a solid-coloured square area in the centre. Put the wording or images on the solid colour in the centre so the background isn't distracting from your images or text.
If you incorporate videos into your presentation, use a black background. This creates a dark border around the video, so it's like watching a movie at a theatre. Avoid light or bright colours like white, yellow or red. This makes the audience's eye draw to the borders instead of the video. Make sure the colours in the video aren't too dark or too light. This causes eye strain and makes people avoid looking at the video.