10. Red and blue together are hard on the eyes

Sometimes we look at a printed or projected page and the colors may look funny. One color may jump while the other seems recessed. This effect is called chromostereopsis, and stronger with red and blue, although it can happen with other colors like red and green. This color combination can be hard and tiring to read or look at. The best solution is to avoid it.

Notes to remember: Avoid putting red and blue near each other on a layout or screen. Avoid blue or green text in a red background, ou red or green text in a blue background.