If any of the boxes are red - all boxes need to go red.
If there are no red boxes and one of the boxes is orange - all boxes need to go orange.
What if the textboxes contain conflicting values, which one gets priority and decides the color to use?
Since you didn't provide a workbook example, perhaps you can build off of the following.
Assuming Textbox1 is used for inputting the value, then the other check boxes will change color per the value.
Note: this is basic code - there are no checks for valid entries into Textbox1.
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