1、Color.FromArgb(120,243,244,247)

先将F3,F4,F7转化为十进制数，再调用以上方法。

2、把F3 F4 F7转成10进制

然后用 Color.FromArgb

3、Color yourColor = Color.FromName("#F3F4F7");

4、比较笨一点的办法：

string a="#F3F4F7";

new System.Drawing.Color.fromArgb(

System.int8.parse(a.substring(1,2),System.Globalization.NumberStyles.AllowHexSpecifier);

System.int8.parse(a.substring(3,2),System.Globalization.NumberStyles.AllowHexSpecifier);

System.int8.parse(a.substring(5,2),System.Globalization.NumberStyles.AllowHexSpecifier);

);

5、Color color ＝Color.FromArgb（0xf3,0xf4,0xf7);

6、Public ForeColor As System.Drawing.Color = ColorTranslator.FromHtml("#F3F4F7")

7、System.Drawing.ColorConverter cc=new System.Drawing.ColorConverter();

return (System.Drawing.Color)cc.ConvertFromString(sHex);