I myself, a few years ago, when I remodeled this house, replaced both here with white
Kohler "Hi-Liner" series toilets with the oversize ball valves. These Kohlers' flush kinda' like a jet engine.
. The original toilets here were pink
However, in the 1950's, my parents had a house built which the master bath toilet was lime green
and the hall bath toilet was medium blue
. They then built another house in the 1970's and all three toilets were harvest yellow