Bar charts in multiple colors for different type of information

I'm working on a dashboard and have to make a design decision.

Is that okay to use different bar chart colors for a different type of information on the same dashboard or I should use the same color always?

I got feedback that one tone color looks boring, but my concern that colorful bar charts may confuse users.

Please see attached mocks: Bar charts in multiple colors

Bar charts in the same color

p.s Actual data is very different, just used some abstract names for example purpose

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