Chris Powell's sacking as Charlton boss this week means Hughton, who is in his second season in charge at Carrow Road, is the only non-white manager out of 92 Premier League and Football League clubs.
Chris Hughton: "To be the only black manager in the divisions is something that is really disappointing.
"There's no doubt there is a massive imbalance in those from a playing capacity going through to management.
"There is a really disappointing void and it's our responsibility to make sure that changes.
"I have seen good strides made in general in involvement in football circles.
"What we have found is there are far more black and ethnic (minority) coaches involved at lesser levels - at grassroots level, associated with clubs, at academy level, at under-21 level - but those same percentages don't apply to first-team management.
"I have seen significant work done at other levels. It's good to see some of those balances a little bit more correct at other levels, but it's taking it to the next step, which is mainstream management.
"We all have a responsibility in the game to continue to work and to continue to evaluate why that is the case. That starts from the FA, from the football clubs themselves and the football environment."