Web Safe Colors, what are they? Web safe colors are a holdover form the old days when computers were only capable of displaying 256 colors. To make sure that all computers available at the time would be able to display the same things evenly a web safe palette of 215 "Web Safe" colors was created. Since nearly all computers these days can display millions of colors it not really needed but can still be important in limited situations. Below is a list of the "Web Safe" colors and their Hexadecimal color codes.