change back button arrow color in ionic 3

Question

How to change back button color in ionic 3? (From white to black color). It's screenshot with this button:

Answer 1

You can change it by just using css. Place the following style rule in the app.scss file:

ion-header ion-icon.back-button-icon.icon {
    color: map-get($colors, dark);
}

That would use the dark color from your $colors array (variables.scss file):

$colors: (
  //...
  dark:       #222
);

Answer 2

You can just do it by using the css.

.back-button-icon-md {
  color: darkblue;
}

Note: md is for android . For ios replace md to ios, For windows replace md to wp.