Ball color

Hi coach,

I don’t have a table tennis rule book.

if I held a tournament using orange colored balls instead of white balls as a tournament organizer, the tournament will not be sanctioned by the international table tennis federation and/or similar organizations?

Is it illegal to use orange balls in a tournament?I know that a white ball is used in a match in almost all tournaments.

Nittaku sells I.T.T.F. Approved orange balls.

Is it illegal to use orange-colored balls in a tournament?

Personally I prefer orange to white simply because I can see the ball better.