Are "web-safe" colors still important?
Years ago, it was always strongly recommended that web designers should only use web-safe colors.
Have studies been done to see if this is still the case? If so, what's the answer?
Does anyone know of or have a reference to a study or report that covers this?
Mostly you have nothing to worry about. An extraordinary majority of visitors to a site will be able to support more than 256 colors these days.
If for some reason your userbase is likely to have a higher than normal proportion of members using systems from the early 90s, then you might want to consider it.. but in any typical scenario it's no longer an issue.
The w3schools browser display statistics shows that in january of 2010 0% of internet users were still at 256 colours