I use Angular-Chart.js (the AngularJS Chart.js version) to create a bar chart. The Chart is working with the options except for the colours.
Even if I set them it is
As @pankajparkar said. Just adding that you can also pass html colours and angular-chart.js will define the colour objects properly in rgba with the proper nuances e.g. $scope.colors = ['#FD1F5E','#1EF9A1','#7FFD1F','#68F000'];
$scope.colors = ['#FD1F5E','#1EF9A1','#7FFD1F','#68F000'];