Thirty-seven cutting samples from the lower upper Cretaceous succession of Safir-N-2 well, north Western Desert of Egypt, were processed palynologically to extract the particulate organic matter (POM). Two palynofacies associations (PFA-1 and PFA-2) were recognized according to quantitative and qualitative changes in the POM constituents. The color alteration of miospores was quantified as Red, Green and Blue color values (RGB) using Photoshop CC 2022. These values were plotted on a ternary diagram, providing a visual representation of the thermal maturity level. The combined data from ternary plot and palynofacies analysis indicates that the Kharita Formation represents a gas phase at a mature stage. In contrast, the lower part of Bahariya Formation represents a gas phase at an immature stage, while its upper part signifies an immature oil phase. The combined data from ternary plot and palynofacies analysis indicates that the Kharita Formation represents a gas phase at a mature stage. In contrast, the lower part of Bahariya Formation represents a gas phase at an immature stage, while its upper part signifies an immature oil phase.