Yes! Blue system is irrelevant on ground. Yellow gives you alternate braking with A/SKD though not applicable at taxi speed. Nose wheel steering and parking brake is available. So why not go and park.
Nose wheel steering is enabled with hydraulic pressure when:
Nose gear doors closed.
A/SKID & N/W STRG switch on.
Towing control lever in normal position.
At least one engine operating.
Aircraft on the ground.
Nose wheel steering is disabled after manual gear extension.
So call for the tug for Towing assistance.