Information provided by colour only

Information conveyed visually by means of colour. For example

• In a document list, documents in red are mandatory.
• In a graph, the various data items are only associated with a coloured legend.

The alternative content used depends on the nature of the content concerned. For example

• Explicit text.
• A visual indication such as an icon or symbol.

Note: in the case of the use of an image associated with text, the image must have a relevant alternative (criteria 1.1 and 1.2).