2.3. Make sure that information is comprehensible, even if the colours are absent
Information must not be conveyed solely by colour.
In the first example, the information in the pie chart can only be understood by associating each segment with a colour.The second version is comprehensible even if the colours are absent.In this first example, squares of different colors are used for the legend. Information is conveyed only by this means.While in this version, the color squares have been replaced by pictograms. This makes the information understandable even in the absence of colors.In this first example of a navigation menu, information regarding the current position (“Investors”) is only conveyed by a change in the background color.While in this version, the addition of a downward pointing arrow makes the information understandable even in the absence of colors.In this first example of a carousel navigation system, the information regarding the current position is conveyed only by the color change.While in this version, the shrinking of the current position makes it possible to make the information understandable even in the absence of colors.
