How to calculate the color based on given fgColor indexed - openxml

Question

I am working on Open XML,
<x:fill>
<x:patternFill patternType="solid">
<x:fgColor indexed="46" />
<x:bgColor indexed="64" />
</x:patternFill>
</x:fill>
Above is a office 2007 document that converted from office 2003.
According to http://msdn.microsoft.com/en-us/library/documentformat.openxml.spreadsheet.foregroundcolor.aspx
Indexed attributes only used for backward compatibility purposes.
Above is my code, how to calculate the #Hex Color Code for indexed = 46?

Answer 1

I made this class for myself. Hope I save someone some trouble
public class IndexedColours
{
static Dictionary<string, string> Data;
IndexedColours()
{
if(Data == null || Data.Count == 0)
{
Data = new Dictionary<string, string>();
Data.Add("0", "000000");
Data.Add("1", "FFFFFF");
Data.Add("2", "FF0000");
Data.Add("3", "00FF00");
Data.Add("4", "0000FF");
Data.Add("5", "FFFF00");
Data.Add("6", "FF00FF");
Data.Add("7", "00FFFF");
Data.Add("8", "000000");
Data.Add("9", "FFFFFF");
Data.Add("10", "FF0000");
Data.Add("11", "00FF00");
Data.Add("12", "0000FF");
Data.Add("13", "FFFF00");
Data.Add("14", "FF00FF");
Data.Add("15", "00FFFF");
Data.Add("16", "800000");
Data.Add("17", "008000");
Data.Add("18", "000080");
Data.Add("19", "808000");
Data.Add("20", "800080");
Data.Add("21", "008080");
Data.Add("22", "C0C0C0");
Data.Add("23", "808080");
Data.Add("24", "9999FF");
Data.Add("25", "993366");
Data.Add("26", "FFFFCC");
Data.Add("27", "CCFFFF");
Data.Add("28", "660066");
Data.Add("29", "FF8080");
Data.Add("30", "0066CC");
Data.Add("31", "CCCCFF");
Data.Add("32", "000080");
Data.Add("33", "FF00FF");
Data.Add("34", "FFFF00");
Data.Add("35", "00FFFF");
Data.Add("36", "800080");
Data.Add("37", "800000");
Data.Add("38", "008080");
Data.Add("39", "0000FF");
Data.Add("40", "00CCFF");
Data.Add("41", "CCFFFF");
Data.Add("42", "CCFFCC");
Data.Add("43", "FFFF99");
Data.Add("44", "99CCFF");
Data.Add("45", "FF99CC");
Data.Add("46", "CC99FF");
Data.Add("47", "FFCC99");
Data.Add("48", "3366FF");
Data.Add("49", "33CCCC");
Data.Add("50", "99CC00");
Data.Add("51", "FFCC00");
Data.Add("52", "FF9900");
Data.Add("53", "FF6600");
Data.Add("54", "666699");
Data.Add("55", "969696");
Data.Add("56", "003366");
Data.Add("57", "339966");
Data.Add("58", "003300");
Data.Add("59", "333300");
Data.Add("60", "993300");
Data.Add("61", "993366");
Data.Add("62", "333399");
Data.Add("63", "333333");
}
}
public static string GetIndexColour(string Index)
{
var d = new IndexedColours();
var res = "";
var exist = Data.TryGetValue(Index, out res);
if (exist)
return res;
else return "000000";
}
}
Method to use the above code:
public static string GetCellColour(this Cell cell, SpreadsheetDocument d)
{
if (cell != null && cell.StyleIndex != null)
{
var valcell = cell;
var styles = d.WorkbookPart.WorkbookStylesPart;
var ss = styles.Stylesheet;
var formats = ss.CellFormats;
var cf = (CellFormat)formats.ElementAt((int)valcell.StyleIndex.Value);
var fill = (Fill)styles.Stylesheet.Fills.ChildElements[(int)cf.FillId.Value];
var fgc = fill.PatternFill.ForegroundColor;
var cl = fgc == null || fgc.Rgb == null ? "FFFFFF" : fgc.Rgb.Value.Remove(0, 2);
if (fgc != null && fgc.Indexed != null && fgc.Indexed.HasValue)
{
cl = IndexedColours.GetIndexColour(fgc.Indexed.Value.ToString());
}
return cl;
}
else return "FFFFFF";
}

Answer 2

Solved my problem, there is color indexes online. just search for it.