Traditional color theory instruction in vocational art education has long relied on conceptual explanations and model painting exercises, leaving students struggling to translate color judgment into concrete creative concepts. This study examines the practical implementation of color training through thematic tasks within vocational art curricula, embedding color learning into a structured classroom process of "theme comprehension → design comparison → artwork iteration". It focuses on analyzing students' progress in color decision-making, emotional expression, and compositional control. By comparing specific classroom assignments with phased artworks, the research demonstrates the tangible educational impact of color courses in enhancing artistic creation capabilities.