Charts
The Government Statistical Service (GSS) guidance recommends a limit of four categories as best practice for basic data visualisations.
Note that charts which have up to 7 categories, chart with colours, for example, will display subsequent bars in #3d3d3d
, #a285d1
and the 7th bar in the default colour of #0b0c0c
and will still meet the colour contrast requirements for adjacent colours.
Charts that have 8 or more categories will display additional bars in the default colour and will not meet colour contrast requirements for adjacent colours.
How it looks (preview)
row 1 | 10 |
row 2 | 15 |
row 3 | 2 |
row 4 | 48 |
How to call this example
<%= render "govuk_publishing_components/components/govspeak", {} do %>
<table class='js-barchart-table mc-auto-outdent'>
<caption>A table with numerical data</caption>
<tbody>
<tr>
<td>row 1</td><td>10</td>
</tr>
<tr>
<td>row 2</td><td>15</td>
</tr>
<tr>
<td>row 3</td><td>2</td>
</tr>
<tr>
<td>row 4</td><td>48</td>
</tr>
</tbody>
</table>
<% end %>