Change border colour of Text field based on Date Field - Calculated Field

Missile64 If you are using modern experience in SharePoint online, you can use JSON column formatting for your title column like: 

{
  "$schema": "https://developer.microsoft.com/json-schemas/sp/v2/column-formatting.schema.json",
  "elmType": "div",
  "style": {
    "padding-left": "5px",
    "border": "2px solid",
    "border-color": "=if([$NextReviewDate] < @now, 'red', if([$NextReviewDate] >= @now && [$NextReviewDate] <= addDays(@now, 30), 'orange', ''))"
  },
  "children": [
    {
      "elmType": "span",
      "txtContent": "@currentField",
      "style": {
        "color": "black"
      }
    }
  ]
}

Output: 

Where NextReviewDate is the internal name of your date column. Follow this article to get the internal name of your SharePoint column: How to find the Internal name of columns in SharePoint Online? 

Documentation: SharePoint column-formatting 

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