The main color in the South African flag is black. The flag features a unique design that incorporates multiple colors, including green, yellow, red, blue, and black. The black color symbolizes the country's diverse population and their struggle for freedom and unity. The flag was adopted in 1994, representing the end of apartheid and the establishment of a democratic South Africa. Its design incorporates elements that reflect the nation’s rich cultural heritage and history, making it a powerful symbol of the country's identity and aspirations. The vibrant colors signify the diversity and unity of the South African people.