Constitution of the Republic of South Africa, 1996/2002-06-20/Schedule 1
(1) The national flag is rectangular; it is one and a half times longer than it is wide.
(2) It is black, gold, green, white, chilli red and blue.
(3) It has a green Y-shaped band that is one fifth as wide as the flag. The centre lines of the band start in the top and bottom corners next to the flag post, converge in the centre of the flag, and continue horizontally to the middle of the free edge.
(4) The green band is edged, above and below in white, and towards the flag post end, in gold. Each edging is one fifteenth as wide as the flag.
(5) The triangle next to the flag post is black.
(6) The upper horizontal band is chilli red and the lower horizontal band is blue. These bands are each one third as wide as the flag.