Hazard's scintillating performances for Chelsea in the 2014/15 season led to Mourinho's Chelsea side capturing the Premier League and League Cup trophies and the Belgian being named as the PFA Player of the Year.
But a dip in form for the winger and a number of other key players at the beginning of the following campaign saw Mourinho sacked by Chelsea while Hazard received widespread criticism for his poor performances.
The 26-year-old has since recovered his form to play a starring role in Chelsea's charge for the league title - with Hazard now opening up about his relationship with former manager Mourinho.
"With Jose I had a super rapport," Hazard told TF1's Telefoot. "The year before, I was the Player of the Season and maybe he expected more from me. I was not so good and it was complicated.
"I was always close with him and with Antonio Conte it's the same."
Conte was appointed as Mourinho's long-term successor at Chelsea last April, and has gone on to revive the Blues - with the club leading the Premier League standings by four points and remaining in the FA Cup.
Hazard admits Conte and Mourinho have different qualities as managers, but went on to reiterate his admiration for his former boss.
When asked how Conte and Mourinho differ, he said: "They have different methods. Conte works a great deal on tactics but Mourinho let it be.
"For me, I had great moments with Mourinho for two years and this year with Conte everything is going very well. I always take the positive from coaches.
"The two are different managers. They have always won, here and in the past. Many people said I didn't listen to Mourinho, but that's not the case. It's not at all the case, I've always had a lot of respect for him."