The IRS maximum 401K contribution is how much you can personally contribute to your 401K during the year. Your employer’s maximum 401K contribution limit is entirely up to them – but the max on total contributions (employee plus employer) to your 401K is $56,000 in 2019 (or 100% of your salary, whichever is less).
https://20somethingfinance.com/maximum-employer-401k-contribution/