In most cases, washer fluid for cars is typically a light blue color, often resembling a bright turquoise or sky blue hue. The specific color may vary slightly depending on the brand or formulation of the washer fluid. The blue color helps to differentiate it from other fluids used in a vehicle, such as engine coolant or motor oil, making it easier to identify and prevent accidental mixing. The blue washer fluid is designed to effectively clean the windshield and remove dirt, dust, bugs, and other debris to improve visibility while driving.