While the app is powerful, it is not infallible. Phone cameras interpret light differently than the human eye. A color picked under the warm glow of a living room lamp will yield a different code than the same color picked in natural daylight. Therefore, the digital finder should be your starting point , not your final decision.
This is not a failure of the code finder but of screen calibration. Never trust a color code solely by looking at a monitor. Always use the code to order a physical sample card. Jotun’s own website includes a disclaimer: "Colors shown on screen are indicative only." jotun color code finder