- This article is about the county. For the city, see St. Louis.
The flag of St. Louis County, Missouri, is a navy blue field with a white fleur-de-lis on the hoist and a red outline.
Symbolism[]
At the heart of the flag's design is a modern interpretation of the iconic fleur-de-lis, a timeless symbol of the region's historic identity and central to the new logo the County unveiled in 2024. This symbol points boldly forward, signifying a commitment to progress and opportunity charting the future of St. Louis County.
The colors also pay homage to the county's history as well. The rose red reflects the vibrant transformation underway in St. Louis County while the navy blue represents the natural waterways and landscapes that define the region, symbolizing growth, sustainability, and connection. The white symbolizes unity and hope coming together to build a brighter St. Louis County.
Flag colors[]
| Color | Color Name | HEX RGB | Color of |
|---|---|---|---|
| Navy Blue | #23275f | Background | |
| White | #ffffff | Fleur-de-lis | |
| Rose Red | #c41f5c | Outline |
Former flag[]
The former flag of St. Louis County, Missouri, is a navy blue field striped with red and white on the horizontal center of the flag. In the center of the flag is a colored version of the seal. It was adopted at an unknown date, and has proportions of 5:8.