 | |
| Use | National flag, civil and state ensign |
|---|---|
| Proportion | 2:3 |
| Adopted | 27 April 1961 |
| Design | A horizontal tricolour of light green, white and light blue |
 | |
| Use | Naval ensign |
| Proportion | 2:3 |
| Adopted | 27 April 1961 |
| Design | White flag with the national flag in canton |
The national flag of Sierra Leone is a tricolour consisting of three horizontal green, white and blue bands. It was adopted in 1961, Sierra Leone's independence year, to replace the British Blue Ensign defaced with the arms of the Crown Colony of Sierra Leone.