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public
static string ToHtmlColor(string
colorName) { try { if
(colorName.StartsWith("#")) colorName = colorName.Replace("#", string.Empty); int
v = int.Parse(colorName, System.Globalization.NumberStyles.HexNumber); Color col = Color.FromArgb ( Convert.ToByte((v >> 24) & 255), Convert.ToByte((v >> 16) & 255), Convert.ToByte((v >> 8) & 255), Convert.ToByte((v >> 0) & 255) ); int
alpha = col.A; var
red = Convert.ToString(col.R, 16); ; var
green = Convert.ToString(col.G, 16); var
blue = Convert.ToString(col.B, 16); return
string.Format("#{0}{1}{2}", red, green, blue); } catch { return
"black"; } } public
static String ColorToStr(System.Drawing.Color color) { try { string
color_s = System.Drawing.ColorTranslator.ToHtml(color); color_s = color_s.Substring(1, color_s.Length - 1); return
"#" + Convert.ToString(Convert.ToInt32(color_s, 16) + 40000, 16); } catch { return
"black"; } } |
原文：http://www.cnblogs.com/qishiguilai/p/3554759.html