Colour customisation can be done on all types of charts in the Custom Dashboards following the the steps below. 

Note: this customisation can only be done on charts in the Custom Dashboards, not the Built-in dashboards.

1. Select a Custom Dashboard.

2. Select Dashboard Layout

{"colors":["#COLOURCODE"]}

The #COLOURCODE will be where you insert the hex colour code.  Each colour is associated with a code. At the end of this article is a list of common colour codes that are used. 

In this example, to change the colour from blue to orange, the code below would be entered: 

{"colors":["#FF6600"]}

5. Click Save Changes. The graph will be automatically updated as shown:

{"colors":["#COLOURCODE1", "#COLOURCODE2"]}

In this example, it will be written as:

{"colors":["#FF6600", "#008000 "]}

Click on Save Changes, and the result can be automatically seen on the Dashboard.

Here is a list of colour codes which could be useful to use:

If you would like other colour options, a range of colour codes can be found here.