I am changing UIButton font size but it does not effect.

```
UIButton*headingButton=[UIButton buttonWithType:UIButtonTypeCustom];

headingButton.frame=CGRectMake(182, 4, 450, 42);        

[headingButton setTitleColor:[UIColor colorWithRed:36/255.0 green:71/255.0 blue:113/255.0 alpha:1.0] forState:UIControlStateNormal]; 

```