I've read that if rooms are decorated in the exact hex code of your Sim's favorite color, that he/she will get a decorated moodlet from it. Personally, I've never been able to make it happen. However, I use the hex codes of my Sims' favorite colors for clothing and cars, just for fun.



I've read that too, on the Sims Wiki. I haven't seen any in-game evidence to support it. A wiki is only as good as the last person to edit it, and unfortunately sometimes people post information there that they've heard somewhere or read in the Prima guide (which is not always accurate), but that has not been confirmed or tested or discovered by looking at the code.I do use my sims' favourite colours, for fun, like you do, and not just for clothes or decorating. In one neighbourhood (just for something different) I use their favourite colours for their hair, with their skins from the red, green or blue palettes. It gives the game a very cartoony look.While on the subject of colours, here's some non-sim sites that can help with coming up with colour schemes when you're decorating. They're easy to use, put in the hex code of a colour you want to use, and then you can see some colours that might work well with that colour.