{由 Delphi 的颜色常数转换到 Html 颜色}
function HexColorToHtmlColor(c: Integer): string;
var
  R,G,B: Byte;
begin
  R := c and $FF;
  G := (c shr 8) and $FF;
  B := (c shr 16) and $FF;
  Result := #35 + Format('%.2x%.2x%.2x',[R,G,B]);
end;


{从十六进制字符串转换到 Html 颜色}
function HexColorToHtmlColor(s: string): string;
var
  i: Integer;
  R,G,B: Byte;
begin
  i := StrToInt(s);
  R := i and $FF;
  G := (i shr 8) and $FF;
  B := (i shr 16) and $FF;
  Result := #35 + Format('%.2x%.2x%.2x',[R,G,B]);
end;