Are colored golf balls legal in tournaments?

Yes, this is perfectly legal. The problem though arises as they are quite hard to see and trickier to find than white ones. Paula Creamer uses a pink Precept Golf ball on Sundays on the LPGA Tour. In 2005 or so Nike made a black 'Nike One Black' golf ball which was used by one golfer on the 18 th hole in a PGA Tour event, he said he could hardly see it once he hit it and said he'd never use it again. These black golf balls were one off golf balls which were included in a dozen box of Nike One Black golf balls.