Following the passing of the 1956 Overseas Reform Act, Ivory Coast became a self-governing member of the French Community. After a two-year transitional period, the country declared its independence on August 7, 1960, with Houphouët-Boigny as its first president.

As it’s already been said, Independence Day is the national day of Cote d’Ivoire. It is packed with various celebratory events and activities, including military parades and processions, cultural activities, parties, and more. The biggest celebration takes place in the capital city of Yamoussoukro. During more turbulent years, both the government and opposition use the day as a propaganda opportunity, holding political rallies in the streets.
https://waeleafrica.org/independence-day-of-ivory-coast This site has a brief, but decent article on Ivory Coast’s colonial history.