angular-material change checkbox color

Question

I'm using checkbox of angular-material2. Currently the default color of checkbox is coming as purple color.
Looks like they have changed default color of checkbox from "primary" to accent.
Is there a way to get "primary"(green) color instead of purple without overriding css.
I tried giving color="primary" to but that didn't worked.

Code : <md-checkbox></md-checkbox>

Import statement:

import {MdCheckbox} from '@angular2-material/checkbox';

Plunker http://plnkr.co/edit/sFC0kfdzj7fxtUC3GXdr?p=preview

Answer 1

For Angular Material 7, works for outline color and inside filled in color

::ng-deep .mat-checkbox-checked.mat-accent .mat-checkbox-ripple .mat-ripple-element {
    opacity: 0.03 !important;
    background-color: #005691!important;
  }

::ng-deep .mat-checkbox-checked.mat-accent .mat-checkbox-background,.mat-checkbox-indeterminate.mat-accent .mat-checkbox-background {
    background-color: #005691;
  }