Color Class - System.Drawing

The Color structure represents an RGBA (red, green, blue, alpha) color.

Overview

The System.Drawing.Color structure is a fundamental part of the System.Drawing namespace, providing a way to represent, manipulate, and use colors in graphics applications. Each color is defined by its red, green, blue, and alpha components. The alpha component controls the opacity of the color, with 0 being fully transparent and 255 being fully opaque.

Properties

`R`

Gets the red component of this Color structure.

`G`

Gets the green component of this Color structure.

`B`

Gets the blue component of this Color structure.

`A`

Gets the alpha component of this Color structure.

`ToArgb()`

Converts this Color structure to a 32-bit ARGB (alpha, red, green, blue) value.

`IsKnownColor`

Gets a value indicating whether this Color structure is a predefined color or system color.

`IsNamedColor`

Gets a value indicating whether this Color structure is an identifiable color.

Methods

`FromArgb(int red, int green, int blue)`

Creates a Color structure from the specified 8-bit color values.

`FromArgb(int alpha, int red, int green, int blue)`

Creates a Color structure from the specified 8-bit color values.

`FromArgb(int argb)`

Creates a Color structure from a 32-bit ARGB value.

`FromName(string name)`

Creates a Color structure from the specified name of a predefined or system color.

Static Properties

The Color class provides a large collection of static properties representing common colors.

Color.AliceBlue
Color.AntiqueWhite
Color.Aqua
Color.Aquamarine
Color.Azure
Color.Black
Color.Blue
Color.BlueViolet
Color.Brown
Color.BurlyWood
Color.CadetBlue
Color.Chartreuse
Color.Chocolate
Color.Coral
Color.CornflowerBlue
Color.Cornsilk
Color.Crimson
Color.Cyan
Color.DarkBlue
Color.DarkCyan
Color.DarkGoldenrod
Color.DarkGray
Color.DarkGreen
Color.DarkKhaki
Color.DarkMagenta
Color.DarkOliveGreen
Color.DarkOrange
Color.DarkOrchid
Color.DarkRed
Color.DarkSalmon
Color.DarkSeaGreen
Color.DarkSlateBlue
Color.DarkSlateGray
Color.DarkTurquoise
Color.DarkViolet
Color.DeepPink
Color.DeepSkyBlue
Color.DimGray
Color.DodgerBlue
Color.Empty
Color.Firebrick
Color.FloralWhite
Color.ForestGreen
Color.Fuchsia
Color.Gainsboro
Color.GhostWhite
Color.Gold
Color.Goldenrod
Color.Gray
Color.Green
Color.GreenYellow
Color.Honeydew
Color.HotPink
Color.IndianRed
Color.Indigo
Color.Invisible
Color.Ivory
Color.Khaki
Color.Lavender
Color.LavenderBlush
Color.LawnGreen
Color.LemonChiffon
Color.LightBlue
Color.LightCoral
Color.LightCyan
Color.LightGoldenrodYellow
Color.LightGray
Color.LightGreen
Color.LightPink
Color.LightSalmon
Color.LightSeaGreen
Color.LightSkyBlue
Color.LightSlateGray
Color.LightSteelBlue
Color.LightYellow
Color.Lime
Color.LimeGreen
Color.Linen
Color.Magenta
Color.Maroon
Color.MediumAquamarine
Color.MediumBlue
Color.MediumOrchid
Color.MediumPurple
Color.MediumSeaGreen
Color.MediumSlateBlue
Color.MediumSpringGreen
Color.MediumTurquoise
Color.MediumVioletRed
Color.MidnightBlue
Color.MintCream
Color.MistyRose
Color.Moccasin
Color.NavajoWhite
Color.Navy
Color.OldLace
Color.Olive
Color.OliveDrab
Color.Orange
Color.OrangeRed
Color.Orchid
Color.PaleGoldenrod
Color.PaleGreen
Color.PaleTurquoise
Color.PaleVioletRed
Color.PapayaWhip
Color.PeachPuff
Color.Peru
Color.Pink
Color.Plum
Color.PowderBlue
Color.Purple
Color.Red
Color.RosyBrown
Color.RoyalBlue
Color.SaddleBrown
Color.Salmon
Color.SandyBrown
Color.SeaGreen
Color.SeaShell
Color.Sienna
Color.Silver
Color.SkyBlue
Color.SlateBlue
Color.SlateGray
Color.Snow
Color.SpringGreen
Color.SteelBlue
Color.Tan
Color.Teal
Color.Thistle
Color.Tomato
Color.Transparent
Color.Turquoise
Color.Violet
Color.Wheat
Color.White
Color.WhiteSmoke
Color.Yellow
Color.YellowGreen

Example Usage

Creating a color from ARGB values


using System.Drawing;

// Create a semi-transparent red color
Color semiTransparentRed = Color.FromArgb(128, 255, 0, 0);

// Create an opaque green color
Color opaqueGreen = Color.FromArgb(0, 0, 255, 0);

Creating a color from a predefined name


using System.Drawing;

Color skyBlue = Color.FromName("SkyBlue");
Color aliceBlue = Color.AliceBlue; // Using static property

Accessing color components


using System.Drawing;

Color myColor = Color.FromArgb(255, 100, 150, 200); // Opaque, R=100, G=150, B=200

int redComponent = myColor.R;
int greenComponent = myColor.G;
int blueComponent = myColor.B;
int alphaComponent = myColor.A;

Console.WriteLine($"Red: {redComponent}, Green: {greenComponent}, Blue: {blueComponent}, Alpha: {alphaComponent}");
// Output: Red: 100, Green: 150, Blue: 200, Alpha: 255

Converting to ARGB value


using System.Drawing;

Color orange = Color.Orange;
int argbValue = orange.ToArgb();

Console.WriteLine($"ARGB value for Orange: {argbValue}");