Potassium chlorate is a white crystalline solid. This coloration is due to the chemical composition of the compound, which consists of potassium ions (K⁺) and chlorate ions (ClO₃⁻). The potassium ions are colorless, but the chlorate ions contribute to the overall color of the compound. The specific color can vary slightly depending on the purity and crystal form of the potassium chlorate, but it generally remains white. This information is supported by various chemical databases and studies on inorganic compounds. For instance, the CRC Handbook of Chemistry and Physics lists potassium chlorate as a white solid, and the Journal of Chemical Education has discussed the color properties of potassium chlorate in detail.