How does this look?
1) Set up your column rules as normal (i.e. Field] > 100
2) Set up a second column rule - in each column - that references all the other rules i.e. [Field] > 100 AND [Field2] > 100 - Assign the group colour to this (in your case orange)
This will tell Alteryx: If rule 1 (the individual) is satisfied, then highlight in a certain colour e.g. green/yellow. If the second rule is satisfied (i.e. other columns meet their conditions and will be coloured), highlight in another colour e.g. orange that you will use for them all.