добавить следующий атрибут в BottomNavigationView
app:itemIconTint="@color/bnv_item_selector"
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="@+id/navigationView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textAlignment="center"
app:itemBackground="@color/white"
app:itemIconTint="@color/bnv_item_selector"
app:itemTextAppearanceActive="@style/BottomNavigationView.Active"
app:itemTextAppearanceInactive="@style/BottomNavigationView"
app:itemTextColor="@color/bottom_menu_text_selector"
app:labelVisibilityMode="labeled"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:menu="@menu/bottom_navigation" />
bnv_item_selector. xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_checked="true" android:color="#6CBF51" />
<item android:color="#E4E5ED" />
</selector>
Надеюсь, это поможет !!