The use of “traffic lights” as colour markers
Red, yellow, green and even orange may be used for “traffic lights” or small colour markings on forms. They should only be used in moderation and only for marking, for example, to show how far a project has progressed, the status of a specific area, etc. The example on the right shows how the Freedom of Movement Council used blue, green, yellow and red in a publication, while red, orange, yellow and green were used on the form. Whenever colour markings are used, the meaning must always be explained.
The dark red and dark yellow in the design manual are used along with dark green and possibly also dark orange. The light red and light yellow in the design manual are used along with light green and possibly light orange. See the colour codes for green and orange below.