If you are using an icon maybe this can be useful:
android:tint="@color/colorAccent"
Otherwise you can try to modify the class:
ImageView imageViewIcon = (ImageView) listItem.findViewById(R.id.imageViewIcon);
imageViewIcon.setColorFilter(getContext().getResources().getColor(R.color.blue));
More info in this thread: Is it possible to change material design icon color from xml in Android?