The transformative effect of a yellow rug is best seen in a dark-coloured or neutral-themed room. Bright yellow rugs, in particular, can make an otherwise boring room more attractive and fascinating. You could even make a yellow rug the centrepiece of your living room, and it would work perfectly well.
Bright shades of yellow are also great for giving the illusion of space in small rooms. If your living room feels cramped and restrictive, consider getting a yellow living room rug to make it airier. If your hallway is gloomy and in dire need of some sprucing, a nice yellow carpet might just be the perfect piece to lighten it.
Yellow is a stimulating colour, which renders it undesirable for bedrooms to a lot of people. However, there are demure shades of this colour, like gold and mustard, that make it quite relaxing. You can place a mustard rug in your bedroom to make it beautiful yet restful.
You should avoid having yellow rugs in the kitchen or dining area because they stain very easily. Unless you are willing to regularly get on your knees to get rid of a stubborn stain, restrict your use of yellow rugs to places where staining is unlikely to happen.