Press the LED NEXT button to cycle through the LED color options. It is possible that you selected the next set of default LED colors and are no longer on the default custom LED colors set.
On the factory default layer, which is the layer that the Raise comes with before you configure anything, the LED NEXT function is located on the Dygma key on the right half of the Raise.
It can also happen that after pressing LED NEXT you pressed MOVE TO 1 and changed to Layer 1. This means you need to go back to Layer 0 to be able to cycle through the LED colors again.
In this short video, we explain how to go back to Layer 0 and cycle through the different LED colors.