The Flag of Indonesia is a simple bicolor with two equal horizontal bands, red (top) and white (bottom) with an overall ratio of 2:3. It was introduced and hoisted in public during the Proclamation of Indonesian Independence on 17 August 1945 in at 56 Jalan Proklamasi (formerly Jalan Pegangsaan Timur) in Jakarta, and again when the Dutch formally transferred sovereignty on 27 December 1949. The design of the flag has remained unchanged since.