
• Be careful with using colors that are similar for pointers; this may make it hard for some users to distinguish between the pointers.

• Pick a base color as a starting point for one pointer and find complementing colors for the other pointer(s).
• If you need more than two pointers, you should rethink your gauge. You need to ask yourself, will the end user be able to read the pointers at a glance?

• Make sure to have a legend to distinguish pointers (most of the time there are at least two pointers, the actual value and a bench-marking value such as an average, a target, etc.). If you have multiple gauges showing the same metrics, a global legend can save you space and reduce the proliferation of redundant information on your dashboard.

• Gauge style (circular, linear) choice can be dependent on the kind of information you are presenting, but is usually dependent on the overall layout. For example, you�ll want to use linear or semi-circular gauges when the area you have to work with isn�t in a square aspect ratio and fully-circular gauges when the area is in a square aspect ratio.
• Use a neutral color for the background of the gauge to make the overlaid elements (such as the pointer and scale) pop.
• Pick a bold color for the actual value pointer and a complementing color for a target color. If a corporate color is neutral, then use a strong primary color such as blue or red as the pointer.
• For ranges, use colors that depict what the range implies, such as green to reflect a good range or red for bad.
• Labels for the scale should generally be kept at a minimum as they tend to overlap when you have many tick marks. Keeping a small font size (10pt) should also give more visibility to the scale.