Google charts - change axis text color

Correct usage for hAxis is using the textStyle options, in which you want the color:

hAxis: {
    textStyle:{color: '#FFF'}
}

I would also recommend using google.setOnLoadCallback(drawChart); function for rendering the chart instead of timeout, at least for me 100 milliseconds was not enough

I manage to change all the chart texts with one CSS.

I think this way is more confortable than configure every chart text type (title, legend, vAxis, hAxis, others).

Maybe it will be usefull for someone.

Some code (Remember to change "#chart_div" for your chart id):

#chart_div text {
    fill: red !important;
}