C#十六进制颜色与Color对象的互相转换

//把十六进制颜色转化为color对象
ColorTranslator.FromHtml("#FF0000")
或ColorTranslator.FromHtml("Red");

//把color对象转化为十六进制颜色
ColorTranslator.ToHtml(Color.FromArgb(255,255,255))
或ColorTranslator.ToHtml(Color.Red);

//十进制转二进制
Console.WriteLine(Convert.ToString(69,2));
//十进制转八进制
Console.WriteLine(Convert.ToString(69,8));
//十进制转十六进制
Console.WriteLine(Convert.ToString(69,16));
//二进制转十进制
Console.WriteLine(Convert.ToInt32(”100111101″,2));
//八进制转十进制
Console.WriteLine(Convert.ToInt32(”76″,8));
//十六进制转十进制
Console.WriteLine(Convert.ToInt32(”FF”,16));

stringcolor_s=ColorTranslator.ToHtml(g.Pen.Color);
color_s=color_s.Substring(1,color_s.Length-1);
g.Pen.Color=ColorTranslator.FromHtml("#"+Convert.ToString(Convert.ToInt32(color_s,16)+40000,16));

Color
Color1=System.Drawing.ColorTranslator.FromHtml(

"#EEEEEE"

);

Color
Color2=System.Drawing.ColorTranslator.FromHtml(

"red"

);

/*

**
Convertback:

*/

string

Color1a
=System.Drawing.ColorTranslator.ToHtml(Color1);

//
-->"#EEEEEE"

string

Color2a
=System.Drawing.ColorTranslator.ToHtml(Color2);

//
-->"Red"

string

Color2b
=String.Format(

"#{0:X2}{1:X2}{2:X2}"

,
Color2.R,Color2.G,Color2.B);