I have the following code already, so when the cell is 0 or 100, it turns
red, 30 turns blue, etc.

However, if I have a blank cell it shows red and I don't want it to have any
colour at all, just the default 'no fill'.

Can anybody help. Many thanks in advance.

Private Sub Worksheet_Change(ByVal Target As Excel.Range)
Dim rArea As Range
Dim rCell As Range
Dim nColor As Long
Set Target = Intersect(Target, Range("E:E"))
If Not Target Is Nothing Then
For Each rArea In Target
For Each rCell In rArea
Select Case rCell.Value
Case 0, 100
nColor = RGB(255, 0, 0)
Case 30
nColor = RGB(23, 178, 233)
Case 60
nColor = RGB(245, 200, 11)
Case 90
nColor = RGB(0, 255, 0)
Case Else
nColor = RGB(255, 255, 255)
End Select
If Not nColor = -1 Then _
rCell.Offset(0, -4).Interior.Color = nColor
Next rCell
Next rArea
End If
End Sub