ASP.NET/C#: Valid Web Color

Using ASP.NET/C# how can I validate if a string is a valid 6-digit web-color?

Valid:
aaBB22
555555

Invalid:
fff
222ggg
LVL 16
hankknightAsked:
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Dave BaldwinFixer of ProblemsCommented:
Valid web colors are 3 groups of hexidecimal numbers so any letter greater than 'f' or 'F' is not valid.  And 'fff' is a valid 3-digit code for white.
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Daniel Van Der WerkenIndependent ConsultantCommented:
Like my other answer:

first, make sure to include;

using System.Globalization;

int n;
string color = "FFFFFF";
bool isColor = int.TryParse( color, NumberStyle.Hexnumber, Culture.InvariantCulture, out n);

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