change actionbar text color android code example
Example: actionbar content color in android
getActionBar()/* or getSupportActionBar() */.setTitle(Html.fromHtml("<font color=\"red\">" + getString(R.string.app_name) + "</font>"));
getActionBar()/* or getSupportActionBar() */.setTitle(Html.fromHtml("<font color=\"red\">" + getString(R.string.app_name) + "</font>"));