"Innocent Blush" (introduced 1986) was a popular color at the time I was working at a plumbing supply co. in the late 80's - early 90's. It is a less intense shade than the others mentioned.
We sold a lot of replacement toilet seats, usually Bemis. Many times it was difficult to determine the correct color to order, even when they knew the toilet's brand. One lady insisted her Kohler fixtures were "Harvest Gold". A seat was purchased, and she returned the day after she picked it up, saying it didn't match very well. I told her to bring in one of the bolt caps so I could see the color, and to look inside the tank for a date stamp. When she came back, she had discovered her fixtures were much older than thought - 1938. The color was "Tuscan". Another seat was ordered in the proper color, and she was very pleased with it.