One thing that's important to remember when choosing a colour - from the time the selection is made until the room is complete - is that the colour means nothing without context.
Many colours look great alone, but look awful when paired with other items. Some colours look fabulous in one setting and ugly in another (one common reason people call me to choose a colour is that the colour they chose because they liked it at a friend or neighbour's looked completely different on their walls with their furniture!)
It's important to consider the whole picture when putting together a room - quite often a colour can give you that "what were you thinking?" moment while you're painting...because you're seeing it on the wall alone, not surrounded by the items it relates to. I often remind clients to wait until the room is put back together before they make a final judgement on whether they like the colour.
I've specified a couple of bolder colours this month (these 2 above...going in 2 different homes) - and when I look at the paint chips they can seem pretty "out there", especially for living room walls...but once they're put beside the furniture and accessories that have bits of the wall colour in them, they end up looking exactly as they should.