The color of Tongnan can be red. Red is a glimpse of the night tour along the Fu River and the root of the revolutionary spirit. Red is also the passion of the street's bright oil-slicked soup enveloped the snow-white shrimp meat.

Tongnan can be yellow. Delightful yellow canola flowers cover the rural areas of Tongnan, which are golden yellow and filled with lemons during the busy harvest time.

The color of Tongnan can be green. The vegetable base of tens of thousands of acres in the southwestern region is a new landscape of rural revitalization. The city has enormous potential for ecologically sustainable development of the park city.

The color of Tongnan can be pink. It presents the poetic beauty of spring, showcasing the romantic pink of blooming flowers in the city.

The color of Tongnan can be blue. The sky is so blue and clear. All the scenery is pleasant and cozy. The exhilarating scientific blueprint, the scientific blue, inspires people to make good use of youth to strive hard.

Every season has its scenery, with colors filling every city corner. These are the unique colors of the city of Tongnan.