Color

res/values/colors.xml

xml

<resources>
  <color name="purple_700">#FF3700B3</color>
</resources>

res/values/themes/themes.xml

xml

<resources xmlns:tools="http://schemas.android.com/tools">
  <style name="Theme.AppName1" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
    <item name="colorPrimaryVariant">@color/purple_700</item>
    <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
  </style>
</resources>