3.07 Pitcher’s Glove
(a) The pitcher’s glove may not, exclusive of piping, be white, gray, nor, in the judgment of an umpire, distracting in any manner. No fielder, regardless of position, may use a fielding glove that falls within a PANTONE® color set lighter than the current 14-series.
(b) No pitcher shall attach to his glove any foreign material of a color different from the glove.
(c) The umpire-in-chief shall cause a glove that violates Rules 3.07(a) or (b) (Rules 1.15(a) or 1.15(b)) to be removed from the game, either on his own initiative, at the recommendation of another umpire or upon complaint of the opposing manager that the umpire-in-chief agrees has merit.