CODE EXAMPLE FOR JAVASCRIPT

chartjs bar chart hover color

...
data: [
  { 
    label: 'the label',
    data: [303, 59, 49], 
    backgroundColor: ['#131e3a', '#19284d', '#1f3260'],
    hoverBackgroundColor: ['#131e3a', '#19284d', '#1f3260']
  }
]
...