Macro To Pull From Specific Sheets - Ignore Others

My workbook has several worksheets so do you need the name of those to be excluded? Or how many sheets i require which are located to the right of the summary tab?

Detail - 5 sheets to the left of summary tab are to be ingored, 7 to the right of the summary are to be pulled (let's say they're named Red, Green, Blue). I only want the colour named tab data pulled and pasted into the summary

Code is below :

Sub karryan()
Dim i As Long
For i = 1 To 3
Sheets(i).UsedRange.offset(1).Copy Sheets("Summary").Range("A" & Rows.count).End(3)(2)
Next i
End Sub