Changing the Color of a Blinking LED Indicator in LabVIEW™

Updated May 4, 2026

Environment

Software

  • LabVIEW
  • LabVIEW Application Builder Module

This article describes how to change the blinking color of an LED indicator in LabVIEW development environment and in a executable. By default, when an LED blinks, LabVIEW uses yellow to indicate the blinking state. However, yellow is often associated with warnings, and in some applications, a different color may be more appropriate.

Changing the color of the blinking LED in LabVIEW development environment

 

To achieve changing the color of the blinking LED in LabVIEW development environment follow the next steps:

 

  1. Open the front panel of your VI.
  2. Click on Tools → Options
  3. In Category field click on Environment and scroll down to Colors tab.
  4. Pick the desired color of blinking indicators in Blink Foreground box.



Changing the color of the blinking LED on an executable

 

The blinking colors are stored in the ini file. In your development environment, your preferences are stored in LabVIEW.ini. In order to get the blinking to use the same colors on your target machine, you will want to transfer the information in your LabVIEW.ini file to the ini file created along with the executable.

 

  1. Navigate to C:\Program Files\National Instruments\LabVIEW <version>\LabVIEW.ini (If using 32-bit version go to Program Files (x86)).
  2. Open the LabVIEW.ini file with a text editor.
  3. Look for the following tokens that are the configurations created previously on the development environment:
    blinkFG = [color in HEX]
    blinkBG = [color in HEX] 
  4. Copy and paste those tokens into the configuration file that will be generated after creating an executable, usually called Application.ini.