The two pink lines indicate the FMS or managed mode target speed range, the pink triangle inbetween indicates the speed target.
I googled "a320 pfd speed indications" and clicked on Primary Flight Display Indications - FlyByWire Simulations which has this to say about target airspeed:
Target Airspeed
This is displayed in either magenta or blue depending on whether managed or selected speed is commanded. It is a triangle coming off from the right side of the speedtape. If the target airspeed is the FMGC computed airspeed, it will be displayed as a magenta triangle. If it is selected from the FCU by the pilots, it will be blue.
The target speed will be a magenta double bar when it is associated with the ECON speed range.
If the target speed is off the scale, the value is displayed as a number above or below the scale.