How do I change matInput to a custom color. I want to change the placeholder and underline color.

I have read through most of the posts and could not find a solution to change the underline.

```
  <mat-form-field class="example-full-width">
    <input matInput placeholder="Favorite food" value="Sushi">
  </mat-form-field>

```

[Stackblitz example](https://stackblitz.com/angular/yglxbxybndq/)

[Image example](https://i.stack.imgur.com/ln3UE.jpg)