Soil color a basic quality of assessing pedogenesis and climatic effects hence, may provide valuable insight into soil properties and may serve as a distinctive and straightforward measurable climatic indicator. In this study, surface horizons samples were sampled at depth 0-30 cm by using an auger in ten provinces of Iraq where the climate conditions are different. Although the different physicochemical properties such as (Soil Texture pH, EC, O.M. CEC, CaCO₃) were identified in the lab section, the Munsell Soil Color Book was applied in the field to identify the soil color.  The result showed a rise in (pH, O.M., CEC, CaCO₃, Fe_d, Clay) based on the color indices BWR, TR₁, and TR₂ in sub-humid climate areas; however, under the same climatic conditions, EC and CaSO₄.2H₂O levels were lower. While Xanthization was more common in semi-arid areas, the processes of Melanization and Runification were more active in humid environments. Multiple regression analysis indicated a statistically significant relationship between BWR and CaCO₃, as well as between TR₁ and CaSO₄.2H₂O. No significant relationship was detected between TR₂ and the soil properties under investigation. Furthermore, linear regression analysis between climate and the BWR soil color index demonstrated a significant association, with value R² = 0.33 at a significance level of 0.01. Research findings demonstrated that Iraqi soil climate shows direct correlation to the BWR index specifically.