One reason that different colored lids are used is to create brand recognition. Companies often choose a specific color or combination of colors to represent their brand identity, and this color is then used consistently across all of their products. By using the same colored lid on their face cream jars, the company is able to reinforce their brand identity and make their products easily recognizable to consumers.

Another reason for using different colored lids is to differentiate between products within a brand. For example, a company may use a blue lid for their moisturizing cream and a pink lid for their anti-aging cream. By using different colors, consumers can easily identify which product they want to purchase without having to read the label or search for specific wording on the jar.

Overall, the use of different colored lids on rounded plastic face cream jars can be beneficial for both companies and consumers. By creating brand recognition and differentiating between products, companies are able to increase sales and customer loyalty. At the same time, consumers are able to easily identify and purchase the products that meet their specific skincare needs.