(web app) translating color from winform to web app

I have an app that saves colors like this: 33023  instead of #FFFFFF

I need to translate this color to #xxxxxx format AND vice versa.
These 2 lines of code work:

'gives me ffff8000
Dim winColor As System.Drawing.Color = System.Drawing.ColorTranslator.FromWin32(33023)

'gives me #FF8000
Dim winColor1 As String = System.Drawing.ColorTranslator.ToHtml(winColor)

*** Now, i need to reverse that and get 33023 back. I tried this and it didnt work:
Dim winColor2 As String = System.Drawing.ColorTranslator.FromHtml(winColor1)

How can I do this??
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