Help! What color vest/tie do i have the groom wear?

Hi ladies! Need your help trying to figure out what color vest and tie my FH should wear. We are only having a MOH and best man. The MOH dress in the pic is a mid shade of pink. Our colors are shades of light to mid pink. I originally wanted my FH to wear a pink vest/tie (the tux is black). The one I liked is in the pic but people are saying that matches the Moh too much and the best man should be the one in pink. So then what do I put my FH in? Ivory? He doesn't like the lighter shade of pink but I worry ivory would blend into a white shirt too much. My girls please help me!