The result brought about a first point on the road since their promotion as champions and continued their impressive adjustment to life in the top flight.
Since a 2-0 loss at West Ham on the opening day they have gone three unbeaten, including a fine win over Manchester City.
Despite the chances Hull created, few could suggest Cardiff were not deserving of a point, as their passing was crisper and in full-back Kevin Theophile-Catherine they had the game's outstanding performer.
"I think it's a fair point for both teams," said Mackay, whose preparations were hindered by the loss of international pair Craig Bellamy and David Marshall to injury. "We both time had time on the ball, both tried to win and had chances other than the goals."
"Aron said he should have scored but the flip side is Danny Graham would maybe say the same," Mackay added.
"Hull have a manager I know well, an excellent manager and I knew it would be tough and it proved that way. We deserved a point.
"We have character and resilience and twice now we have come from losing positions to get something.