Teams that place the LGBT rainbow on the kit violate FIFA's Equipment Regulations. The FIFA Disciplinary Committee needs to enforce the rules.
According to FIFA Equipment Regulations, Article 5.2: “Save as explicitly stated otherwise under these Regulations, no Playing Equipment item worn by an outfield player or goalkeeper may consist of more than four Colours.”
FIFA Equipment Regulations, Article 5.4: “Notwithstanding art. 5 par. 2 above, a fifth Colour may be used for numbering and naming purposes (e.g. Player’s name, numbers).”
FIFA Equipment Regulations, Article 6.3: “A number (i.e. one or more digits) must consist of one single Colour only or the same group of a basic Colour provided that, in FIFA’s reasonable discretion, in such case the visual impression of one single Colour is created and a light and dark contrast of Colours between the stroke of the number and the specific Playing Equipment items is equally achieved.”
Here are examples of teams violating FIFA's Equipment regulations in international matches. As of the writing of this post, FIFA's Disciplinary Committee has failed to meet its responsibilities to warn or sanction these teams for violating the rules.
Violation: The LGBT rainbow- colored numbers of the U.S. Soccer Federation and the Football Association of Ireland outlined in white or black each had seven colors: Red, orange, yellow, green, blue, purple, and white/black.
Both Republic of Ireland and US men’s national teams wore LGBT rainbow jerseys, and Wil Trapp (USA) wore an LGBT rainbow captain’s armband, June 2, 2018 in Dublin, Ireland.
USA wore LGBT rainbow jerseys vs. Venezuela, June 3, 2017 in Sandy, Utah, United States.
USA wore LGBT rainbow jerseys and Alex Morgan (USA) and Carli Lloyd (USA) wore an LGBT rainbow captain’s armband vs People’s Republic of China, June 7, 2018, in Sandy, Utah, United States.
USA wore LGBT rainbow jerseys and Alex Morgan (USA) wore an LGBT rainbow captain’s armband vs. People’s Republic of China, June 12, 2018, in Sandy, Utah, United States.
Violation: The Football Association of England’s LGBT rainbow laces had six colors.
England Women’s National Team wore LGBT rainbow laces vs Bosnia-Herzegovina Women, Nov. 24, 2017 in Walsall, United Kingdom.
Read in the 2109 report, "Let All Play: Yes to Soccer, No to Politics" about other ways the LGBT rainbow on the kit violates other FIFA regulations and Laws of the Game and other FIFA regulations.