MPAndroidChart how to set label color?

Incase for a pie chat to change its label colors you can do this

pieChart.getLegend().setTextColor(Color.WHITE);

Try this to set the colors of axis and legend:

chart.getAxisLeft().setTextColor(...); // left y-axis
chart.getXAxis().setTextColor(...);
chart.getLegend().setTextColor(...);
chart.getDescription().setTextColor(...);

If you want to set the color of the drawn values inside the chart, check out the setting colors documentation or the setting data documentation.