Modify visualization text and background colors on Grafana Labs

About thresholds

Sat, 04 Apr 2026 12:26:57 +0000

About thresholds

Thresholds set the color of either the value text or the background based on conditions that you define.

There are two types of thresholds:

Absolute thresholds are defined based on a number. For example, 80 on a scale of 1 to 150.
Percentage thresholds are defined relative to minimum or maximum. For example, 80 percent.

You can apply thresholds to most, but not all, visualizations.

Default thresholds

On visualizations that support it, Grafana sets default threshold values of:

80 = red
Base = green
Mode = Absolute

The Base value represents minus infinity. It is generally the “good” color.

Add a threshold

Sat, 04 Apr 2026 12:26:57 +0000

Add a threshold

You can add as many thresholds to a panel as you want. Grafana automatically sorts thresholds from highest value to lowest.

Before you begin

Add a panel to a dashboard.

To add a threshold:

Edit the panel to which you want to add a threshold.
On the panel display options, locate the Thresholds section.
Click + Add threshold.

Grafana adds a threshold value and color.
Accept the recommendations or edit the threshold.
- Edit color: To select a color, click the color dot.
- Edit number: To change the threshold value, click in the field and enter a number.
Select a Threshold mode. Threshold mode applies to all thresholds on this panel.
In the Show thresholds drop-down, select a threshold display option.
Click Save.

Delete a threshold

Sat, 04 Apr 2026 12:26:57 +0000

Delete a threshold

Delete a threshold when it is no longer relevant to your business operations. When you delete a threshold, the system removes the threshold from all visualizations that include the threshold.

Before you begin

Add a threshold.

To delete a threshold:

Navigate to the panel to which you want to add a threshold.
Click the Field tab. (Or Panel tab for a graph panel.)
Click the trash can icon next to the threshold you want to remove.
Click Save to save the changes in the dashboard.

Add a threshold to a legacy graph panel

Sat, 04 Apr 2026 12:26:57 +0000

Add a threshold to a legacy graph panel

In the Graph panel visualization, thresholds enable you to add lines or sections to a graph to make it easier to recognize when the graph crosses a threshold.

Before you begin

Add a panel to a dashboard.

To add a threshold to a graph panel:

Navigate to the graph panel to which you want to add a threshold.
On the Panel tab, click Thresholds.
Click Add threshold.
Complete the following fields:
- T1 - Both values are required to display a threshold.
  - lt or gt - Select lt for less than or gt for greater than to indicate what the threshold applies to.
  - Value - Enter a threshold value. Grafana draws a threshold line along the Y-axis at that value.
- Color - Choose a condition that corresponds to a color, or define your own color.
  - custom - You define the fill color and line color.
  - critical - Fill and line color are red.
  - warning - Fill and line color are yellow.
  - ok - Fill and line color are green.
- Fill - Controls whether the threshold fill is displayed.
- Line - Controls whether the threshold line is displayed.
- Y-Axis - Choose left or right.
Click Save to save the changes in the dashboard.