making a list from different tabs within an excel sheet based on the colour of the cell

You can use a macro to get the result you would like, otherwise I don't think it's possible.  Please see attached example workbook.  Since, I cannot attach a macro enabled file you will need to paste this code into a new code module by doing the following:

1. Use Alt + F11 to access the Visual Basic Editor

2. Click Insert > Module

3. Paste this code into the "blank" window

4. Hit the "Play" button (Green Triangle on the task bar) to run the macro

Sub GetColorsAndList()

    Dim sht As Worksheet
    Dim Counter As Integer
    'Cycle through worksheets
    For Each sht In ActiveWorkbook.Worksheets
        If sht.Name <> "Results" Then
            'Get the color of Cell A1 and Print to Results Worksheet
            'Using Copy and Paste ---> Change the cell reference as needed
            sht.Range("A1").Copy Sheets("Results").Range("A" & Counter + 1)
            'Put the parent sheet in the cell on Results tab
            Sheets("Results").Range("A" & Counter + 1) = sht.Name
            Counter = Counter + 1
        End If
    Next sht

End Sub

The results will look like this: