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ios - UIButton title text color

I'm setting text color for UIButton

headingButton.titleLabel.textColor = [UIColor colorWithRed:36/255.0 
                                                     green:71/255.0 
                                                      blue:113/255.0 
                                                     alpha:1.0];

It's not changing color same code I'm using in another code it's working.

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use

Objective-C

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

Swift

headingButton.setTitleColor(.black, for: .normal)

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