hi welcome to hcm,
which develop due to a blunt force will shift to the depended part of body due to gravitational force even though your hit area was high the bruice will shift to lower areas.
If no fracture
or any other problem no need to worry the discoloration will be normal by 10-15 days. that will absorbed.
give rest to the affected part up to that time
never rub or again hit by any objects
keep some ice pack if pain is there