Promenade color recommendation for Vintage Bathroom

I am replacing my toilet in my old 1920/30s bathroom. The bathroom has the original subway tiles in "white". I have an old wall hung iron sink and 6 foot cast iron bath tub. I am wondering which "white" Toto would be the best match. I have viewed the thread where the Mercer is pictured and recommendation is made for Mercer, Dartsmouth, or Promenade. https://terrylove.com/forums/showth...e-toilet-review-and-comments&highlight=mercer
My tiles and flooring are similar in color to those pictured. Can anyone tell me whether that is a cotton or colonial white toilet in the picture? Is that the best match? Thanks !