5.3.1 The colours used for the presentation of
alphanumeric data, text, symbols and other graphical information should
provide sufficient contrast against the background under all lighting
conditions likely to be experienced on the bridge of a ship.
5.3.2 The colours and brightness should take into
account the light conditions of daylight, dusk and night. The presentation
should support night viewing by showing light foreground information
on a dark non-reflecting background at night.
5.3.3 The background colour and contrast should
be chosen to allow presented information to be easily discriminated
without degrading the colour coding aspects of the presentation.