Highlighted color different with UIButtonConfiguration

When a UIButton configured with UIButtonConfiguration is selected and highlighted, my highlight colors are different in dark mode. Here's some relevant code

 UIColor* kTitleColorStateNormal = [UIColor colorWithWhite:0.0 alpha:1.0];
  UIColor* kTitleColorStateHighlighted = [UIColor colorWithWhite:0.0 alpha:0.3];
    button.configurationUpdateHandler = ^(UIButton* incomingButton) {
      UIButtonConfiguration* updatedConfig = incomingButton.configuration;
      switch (incomingButton.state) {
        case UIControlStateHighlighted:
          updatedConfig.baseForegroundColor = kTitleColorStateHighlighted;
          break;
        case UIControlStateNormal:
          updatedConfig.baseForegroundColor = kTitleColorStateNormal;
          break;
        default:
          break;
      }
      incomingButton.configuration = updatedConfig;
    };

This is the code used without UIButtonConfiguration

  [button setTitleColor:kTitleColorStateNormal forState:UIControlStateNormal];
  [button setTitleColor:kTitleColorStateHighlighted
                 forState:UIControlStateHighlighted];

and the output are these screenshots

Without UIButtonConfiguration

With UIButtonConfiguration

The white buttons are what the buttons look like in UIControlStateNormal. I agree that "with UIButtonConfiguration" does look better, but I would like the output to be the same, and it's not. Any help would be appreciated!