Many of use homeowners tend to shy away from colour. We tend to stick to "less offensive" neutral colours like grey, beige and white. It's hard to say why they do this. Are we scared of what others might think? Are we afraid to make a mistake? Who knows, but our suggestion is to be brave and take a chance. the best place to do this is a bathroom, it's small, and easier to change if you don't like it. Another thing people forget about is a bathroom doesn't need to match the rest of your home.
It's easy to shut the door and pass the bathroom without even looking inside, so it shouldn't have to blend in with everything else.
Here is a picture of a bathroom we painted this month, and we think it's pretty stunning. The deep turquoise colour brings a fun energy to the guest bathroom.