What's the default color for placeholder text in UITextField?

问题

Does anyone know what color a UITextField's placeholder text is, by default? I'm trying to set a UITextView's text to the same color. I've read elsewhere that it is UIColor.lightGrayColor() but it is actually a little lighter.

回答1:

You can get this colour from inspecting the attributedPlaceholder from the UITextField.

The default seems to be: NSColor = "UIExtendedSRGBColorSpace 0 0 0.0980392 0.22";

You could add an extension (or category) on UIColor:

extension UIColor {
    static var placeholderGray: UIColor {
        return UIColor(colorLiteralRed: 0, green: 0, blue: 0.0980392, alpha: 0.22)
    }
}

2018, latest syntax is just:

extension UIColor {
    static var officialApplePlaceholderGray: UIColor {
        return UIColor(red: 0, green: 0, blue: 0.0980392, alpha: 0.22)
    }
}

#colorLiteralRed was deprecated. Be aware of this in some cases.

回答2:

The colour is #C7C7CD (r: 199 g:199 b: 205) (as what pterry26 said)

and the font-family is HelveticaNeue-Medium and size is 16

Note that this is a guess at what the color looks like on a screen. For the actual values, simply inspect the Apple code for attributedPlaceholder.

回答3:

I sent a screenshot to my mac and used Photoshop's eyedropper tool. For anyone interested, this is at least a very good approximation of the placeholder color on a white background:

Red: 199, Green: 199, Blue: 205

回答4:

The actual color is not a solid one but has transparency in it. So the closest color is

Red: 4, Green: 4, Blue: 30, Alpha: ~22%

If you use this with a white background you will get what @pterry26 wrote above.

回答5:

Using the values from the correct answer above

extension UIColor {

    class func greyPlaceholderColor() -> UIColor {
        return UIColor(red: 0.78, green: 0.78, blue: 0.80, alpha: 1.0)
    }

}

回答6:

According to the Apple code, it is 70% gray

open var placeholder: String? // default is nil. string is drawn 70% gray

and if we convert it to rgb :

UIColor.init(red: 178/255, green: 178/255, blue: 178/255, alpha: 1)

回答7:

Just to add that in iOS 13 (and later), the placeholder color is exposed by Apple via

UIColor.placeholderText

and it's dynamic (supports both dark and light).

Putting it with pre-iOS 13:

static var placeholderText: UIColor {
  if #available(iOS 13.0, *) {
    return .placeholderText
  }
  return UIColor(red: 60, green: 60, blue: 67)!.withAlphaComponent(0.3)
}

回答8:

I believe it is R:191 G:191 B:198 A:1. See image below. Here marked controls are UIButton with above Title TextColor and rest are UITextFields with default placeholder color. If iOS makes difference, then this one is iOS 9.

回答9:

The code #999999 matches perfectly on my form!

回答10:

Better to grab the color off of a text field dynamically in case it changes in the future. Default to 70% gray, which is pretty close

extension UITextField {
  var placeholderColor: UIColor {
    return attributedPlaceholder?.attributes(at: 0, effectiveRange: nil)[.foregroundColor] as? UIColor ?? UIColor(white: 0.7, alpha: 1)
  }
}