Blue Toilet Seat

toilet seat
(Toilet Seats) Most toilets do not include a seat. They are available for round or elongated shaped bowls, regular or contoured for more comfortable seating. They also come in many finishes such as wood, molded composition, cushioned vinyl, plastic or polypropylene.
the hinged seat on a toilet
Toilet seats are detachable, ringlike seats of plastic hinged to the top of a toilet bowl. They should be cleaned and disinfected daily using proper disinfectant-cleaner to prevent the spread of germs. Some toilet seats have a lid attached and others do not.

blue
blue color or pigment; resembling the color of the clear sky in the daytime; "he had eyes of bright blue"
turn blue
Blue clothes or material
A blue uniform, or a person wearing a blue uniform, such as a police officer or a baseball umpire
Blue color or pigment
of the color intermediate between green and violet; having a color similar to that of a clear unclouded sky; "October's bright blue weather"- Helen Hunt Jackson; "a blue flame"; "blue haze of tobacco smoke"