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Colors Class

Implements a set of predefined colors.

Namespace: System.Windows.Media
Assembly: PresentationCore (in presentationcore.dll)
XML Namespace:  http://schemas.microsoft.com/winfx/2006/xaml/presentation

public sealed class Colors
public final class Colors
public final class Colors
 You cannot declare this managed class in XAML, but you can use its static properties to assign values in XAML. 

The Windows Presentation Foundation (WPF) color names match the Microsoft .NET Framework version 1.0, Windows Forms, and Microsoft Internet Explorer color names. This representation is based on UNIX X11 named color values.

The following image shows each predefined color, its name, and its hexadecimal value.

Color Table including a color swatch, the color name, and the hexadecimal value


Predefined colors

See the Brush class for a variety of other more complex ways you can color an area, including gradients (LinearGradientBrush, RadialGradientBrush) or images (ImageBrush).

To paint an area with a solid color, you can use a predefined system brush, such as Red or Blue, or you can create a new SolidColorBrush and describe its Color using alpha, red, green, and blue values. In XAML, you may also paint an area with a solid color by using hexidecimal notation.

The following examples uses each of these techniques to paint a Rectangle blue.

Using a Predefined Brush

In the following example uses the predefined brush Blue to paint a rectangle blue.

<Rectangle Width="50" Height="50" Fill="Blue" />

// Create a rectangle and paint it with
// a predefined brush.
Rectangle myPredefinedBrushRectangle = new Rectangle();
myPredefinedBrushRectangle.Width = 50;
myPredefinedBrushRectangle.Height = 50;
myPredefinedBrushRectangle.Fill = Brushes.Blue;

For a list of predefined brushes, see the Brushes class.

Using Hexadecimal Notation

The next example uses 8-digit hexadecimal notation to paint a rectangle blue.

<!-- Note that the first two characters "FF" of the 8-digit
     value is the alpha which controls the transparency of 
     the color. Therefore, to make a completely transparent
     color (invisible), use "00" for those digits (e.g. #000000FF). -->
<Rectangle Width="50" Height="50" Fill="#FF0000FF" />

Using ARGB Values

The next example creates a SolidColorBrush and describes its Color using the ARGB values for the color blue.

<Rectangle Width="50" Height="50">
  <Rectangle.Fill>
    <SolidColorBrush>
     <SolidColorBrush.Color>

        <!-- Describes the brush's color using
             RGB values. Each value has a range of 0-255.  
             R is for red, G is for green, and B is for blue.
             A is for alpha which controls transparency of the
             color. Therefore, to make a completely transparent
             color (invisible), use a value of 0 for Alpha. -->
        <Color A="255" R="0" G="0" B="255" />
     </SolidColorBrush.Color>
    </SolidColorBrush>
  </Rectangle.Fill>
</Rectangle>

Rectangle myRgbRectangle = new Rectangle();
myRgbRectangle.Width = 50;
myRgbRectangle.Height = 50;
SolidColorBrush mySolidColorBrush = new SolidColorBrush();

// Describes the brush's color using RGB values. 
// Each value has a range of 0-255.
mySolidColorBrush.Color = Color.FromArgb(255, 0, 0, 255);
myRgbRectangle.Fill = mySolidColorBrush;           

For other ways of describing color, see the Color structure.

Related Topics

For more information about SolidColorBrush and additional examples, see the Painting with WPF Brushes overview.

This code example is part of a larger example provided for the SolidColorBrush class. For the complete sample, see the Brushes Sample.

System.Object
  System.Windows.Media.Colors
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0
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