The flag of sierra leone was inaugurated on April 27, 1961. The ratio of length to width of the flag is 3:2. The national flag is composed of three parallel rectangles, which are green, white and blue from top to bottom. Green symbolizes agriculture and also represents the country's natural resources and mountains; White symbolizes national unity and people's pursuit of justice; Blue symbolizes the ocean and hope that sierra leone's natural harbor will contribute to world peace.